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Finding the Fourth Proportional to 622,704, 859,332.48 and 354,432

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Solution

The fourth proportional to 622,704, 859,332.48 and 354,432 is: 489,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,704 : 859,332.48 = 354,432 : x
  2. Step 2: Convert to fraction form
    622,704/859,332.48 = 354,432/x
  3. Step 3: Cross multiply
    622,704x = 859,332.48 × 354,432
  4. Step 4: Simplify right side
    622,704x = 304,574,929,551.36
  5. Step 5: Solve for x
    x = 304,574,929,551.36/622,704
  6. Step 6: Final answer
    x = 489,116.71

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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.