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Finding the Fourth Proportional to 672,746.74, 927,425.85 and 529,257.58

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Solution

The fourth proportional to 672,746.74, 927,425.85 and 529,257.58 is: 729,616.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,746.74 : 927,425.85 = 529,257.58 : x
  2. Step 2: Convert to fraction form
    672,746.74/927,425.85 = 529,257.58/x
  3. Step 3: Cross multiply
    672,746.74x = 927,425.85 × 529,257.58
  4. Step 4: Simplify right side
    672,746.74x = 490,847,161,000.44
  5. Step 5: Solve for x
    x = 490,847,161,000.44/672,746.74
  6. Step 6: Final answer
    x = 729,616.56

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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.