Home / 885,764.10-1,328,646.15-487,632.90

Finding the Fourth Proportional to 885,764.10, 1,328,646.15 and 487,632.90

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Solution

The fourth proportional to 885,764.10, 1,328,646.15 and 487,632.90 is: 731,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,764.10 : 1,328,646.15 = 487,632.90 : x
  2. Step 2: Convert to fraction form
    885,764.10/1,328,646.15 = 487,632.90/x
  3. Step 3: Cross multiply
    885,764.10x = 1,328,646.15 × 487,632.90
  4. Step 4: Simplify right side
    885,764.10x = 647,891,575,198.34
  5. Step 5: Solve for x
    x = 647,891,575,198.34/885,764.10
  6. Step 6: Final answer
    x = 731,449.35

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Double scale
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Similar ratio
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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.