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Finding the Fourth Proportional to 661,637.20, 992,455.80 and 600,619.90

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Solution

The fourth proportional to 661,637.20, 992,455.80 and 600,619.90 is: 900,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,637.20 : 992,455.80 = 600,619.90 : x
  2. Step 2: Convert to fraction form
    661,637.20/992,455.80 = 600,619.90/x
  3. Step 3: Cross multiply
    661,637.20x = 992,455.80 × 600,619.90
  4. Step 4: Simplify right side
    661,637.20x = 596,088,703,350.42
  5. Step 5: Solve for x
    x = 596,088,703,350.42/661,637.20
  6. Step 6: Final answer
    x = 900,929.85

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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.