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Finding the Fourth Proportional to 552,870.39, 762,770.21 and 335,148.87

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Solution

The fourth proportional to 552,870.39, 762,770.21 and 335,148.87 is: 462,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,870.39 : 762,770.21 = 335,148.87 : x
  2. Step 2: Convert to fraction form
    552,870.39/762,770.21 = 335,148.87/x
  3. Step 3: Cross multiply
    552,870.39x = 762,770.21 × 335,148.87
  4. Step 4: Simplify right side
    552,870.39x = 255,641,572,275.42
  5. Step 5: Solve for x
    x = 255,641,572,275.42/552,870.39
  6. Step 6: Final answer
    x = 462,389.70

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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.