Home / 763,200.80-1,144,801.20-231,095.60

Finding the Fourth Proportional to 763,200.80, 1,144,801.20 and 231,095.60

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Solution

The fourth proportional to 763,200.80, 1,144,801.20 and 231,095.60 is: 346,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,200.80 : 1,144,801.20 = 231,095.60 : x
  2. Step 2: Convert to fraction form
    763,200.80/1,144,801.20 = 231,095.60/x
  3. Step 3: Cross multiply
    763,200.80x = 1,144,801.20 × 231,095.60
  4. Step 4: Simplify right side
    763,200.80x = 264,558,520,194.72
  5. Step 5: Solve for x
    x = 264,558,520,194.72/763,200.80
  6. Step 6: Final answer
    x = 346,643.40

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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.