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Finding the Fourth Proportional to 510,641.91, 704,673.12 and 281,197.38

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Solution

The fourth proportional to 510,641.91, 704,673.12 and 281,197.38 is: 388,045.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,641.91 : 704,673.12 = 281,197.38 : x
  2. Step 2: Convert to fraction form
    510,641.91/704,673.12 = 281,197.38/x
  3. Step 3: Cross multiply
    510,641.91x = 704,673.12 × 281,197.38
  4. Step 4: Simplify right side
    510,641.91x = 198,152,235,100.43
  5. Step 5: Solve for x
    x = 198,152,235,100.43/510,641.91
  6. Step 6: Final answer
    x = 388,045.38

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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.