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Finding the Fourth Proportional to 659,354.50, 909,909.21 and 357,548.74

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Solution

The fourth proportional to 659,354.50, 909,909.21 and 357,548.74 is: 493,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,354.50 : 909,909.21 = 357,548.74 : x
  2. Step 2: Convert to fraction form
    659,354.50/909,909.21 = 357,548.74/x
  3. Step 3: Cross multiply
    659,354.50x = 909,909.21 × 357,548.74
  4. Step 4: Simplify right side
    659,354.50x = 325,336,891,549.90
  5. Step 5: Solve for x
    x = 325,336,891,549.90/659,354.50
  6. Step 6: Final answer
    x = 493,417.26

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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.