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Finding the Fourth Proportional to 699,565.98, 963,066.60 and 667,429.23

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Solution

The fourth proportional to 699,565.98, 963,066.60 and 667,429.23 is: 918,825.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,565.98 : 963,066.60 = 667,429.23 : x
  2. Step 2: Convert to fraction form
    699,565.98/963,066.60 = 667,429.23/x
  3. Step 3: Cross multiply
    699,565.98x = 963,066.60 × 667,429.23
  4. Step 4: Simplify right side
    699,565.98x = 642,778,799,276.72
  5. Step 5: Solve for x
    x = 642,778,799,276.72/699,565.98
  6. Step 6: Final answer
    x = 918,825.13

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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.