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Finding the Fourth Proportional to 610,516.20, 915,555.60 and 310,897.20

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Solution

The fourth proportional to 610,516.20, 915,555.60 and 310,897.20 is: 466,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,516.20 : 915,555.60 = 310,897.20 : x
  2. Step 2: Convert to fraction form
    610,516.20/915,555.60 = 310,897.20/x
  3. Step 3: Cross multiply
    610,516.20x = 915,555.60 × 310,897.20
  4. Step 4: Simplify right side
    610,516.20x = 284,643,672,484.32
  5. Step 5: Solve for x
    x = 284,643,672,484.32/610,516.20
  6. Step 6: Final answer
    x = 466,234.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.