Home / 763,603.20-1,145,404.80-231,206.40

Finding the Fourth Proportional to 763,603.20, 1,145,404.80 and 231,206.40

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Solution

The fourth proportional to 763,603.20, 1,145,404.80 and 231,206.40 is: 346,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,603.20 : 1,145,404.80 = 231,206.40 : x
  2. Step 2: Convert to fraction form
    763,603.20/1,145,404.80 = 231,206.40/x
  3. Step 3: Cross multiply
    763,603.20x = 1,145,404.80 × 231,206.40
  4. Step 4: Simplify right side
    763,603.20x = 264,824,920,350.72
  5. Step 5: Solve for x
    x = 264,824,920,350.72/763,603.20
  6. Step 6: Final answer
    x = 346,809.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.