Home / 761,654.12-1,051,560.66-490,193.72

Finding the Fourth Proportional to 761,654.12, 1,051,560.66 and 490,193.72

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Solution

The fourth proportional to 761,654.12, 1,051,560.66 and 490,193.72 is: 676,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,654.12 : 1,051,560.66 = 490,193.72 : x
  2. Step 2: Convert to fraction form
    761,654.12/1,051,560.66 = 490,193.72/x
  3. Step 3: Cross multiply
    761,654.12x = 1,051,560.66 × 490,193.72
  4. Step 4: Simplify right side
    761,654.12x = 515,468,431,731.06
  5. Step 5: Solve for x
    x = 515,468,431,731.06/761,654.12
  6. Step 6: Final answer
    x = 676,774.95

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Double scale
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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.