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Finding the Fourth Proportional to 568,732.38, 784,854.53 and 310,602.79

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Solution

The fourth proportional to 568,732.38, 784,854.53 and 310,602.79 is: 428,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,732.38 : 784,854.53 = 310,602.79 : x
  2. Step 2: Convert to fraction form
    568,732.38/784,854.53 = 310,602.79/x
  3. Step 3: Cross multiply
    568,732.38x = 784,854.53 × 310,602.79
  4. Step 4: Simplify right side
    568,732.38x = 243,778,006,762.14
  5. Step 5: Solve for x
    x = 243,778,006,762.14/568,732.38
  6. Step 6: Final answer
    x = 428,633.95

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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.