Home / 763,346.80-1,144,266.90-426,548.80

Finding the Fourth Proportional to 763,346.80, 1,144,266.90 and 426,548.80

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Solution

The fourth proportional to 763,346.80, 1,144,266.90 and 426,548.80 is: 639,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,346.80 : 1,144,266.90 = 426,548.80 : x
  2. Step 2: Convert to fraction form
    763,346.80/1,144,266.90 = 426,548.80/x
  3. Step 3: Cross multiply
    763,346.80x = 1,144,266.90 × 426,548.80
  4. Step 4: Simplify right side
    763,346.80x = 488,085,673,074.72
  5. Step 5: Solve for x
    x = 488,085,673,074.72/763,346.80
  6. Step 6: Final answer
    x = 639,402.27

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Double scale
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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.