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Finding the Fourth Proportional to 486,332.09, 669,652.59 and 440,713.27

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Solution

The fourth proportional to 486,332.09, 669,652.59 and 440,713.27 is: 606,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,332.09 : 669,652.59 = 440,713.27 : x
  2. Step 2: Convert to fraction form
    486,332.09/669,652.59 = 440,713.27/x
  3. Step 3: Cross multiply
    486,332.09x = 669,652.59 × 440,713.27
  4. Step 4: Simplify right side
    486,332.09x = 295,124,781,028.74
  5. Step 5: Solve for x
    x = 295,124,781,028.74/486,332.09
  6. Step 6: Final answer
    x = 606,837.98

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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.