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Finding the Fourth Proportional to 610,752.34, 915,980.89 and 256,031.88

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Solution

The fourth proportional to 610,752.34, 915,980.89 and 256,031.88 is: 383,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,752.34 : 915,980.89 = 256,031.88 : x
  2. Step 2: Convert to fraction form
    610,752.34/915,980.89 = 256,031.88/x
  3. Step 3: Cross multiply
    610,752.34x = 915,980.89 × 256,031.88
  4. Step 4: Simplify right side
    610,752.34x = 234,520,309,310.77
  5. Step 5: Solve for x
    x = 234,520,309,310.77/610,752.34
  6. Step 6: Final answer
    x = 383,985.94

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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.