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Finding the Fourth Proportional to 659,355, 909,909.90 and 357,549.24

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Solution

The fourth proportional to 659,355, 909,909.90 and 357,549.24 is: 493,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,355 : 909,909.90 = 357,549.24 : x
  2. Step 2: Convert to fraction form
    659,355/909,909.90 = 357,549.24/x
  3. Step 3: Cross multiply
    659,355x = 909,909.90 × 357,549.24
  4. Step 4: Simplify right side
    659,355x = 325,337,593,213.48
  5. Step 5: Solve for x
    x = 325,337,593,213.48/659,355
  6. Step 6: Final answer
    x = 493,417.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.