Home / 672,092.90-1,008,139.35-459,203.30

Finding the Fourth Proportional to 672,092.90, 1,008,139.35 and 459,203.30

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Solution

The fourth proportional to 672,092.90, 1,008,139.35 and 459,203.30 is: 688,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,092.90 : 1,008,139.35 = 459,203.30 : x
  2. Step 2: Convert to fraction form
    672,092.90/1,008,139.35 = 459,203.30/x
  3. Step 3: Cross multiply
    672,092.90x = 1,008,139.35 × 459,203.30
  4. Step 4: Simplify right side
    672,092.90x = 462,940,916,379.86
  5. Step 5: Solve for x
    x = 462,940,916,379.86/672,092.90
  6. Step 6: Final answer
    x = 688,804.95

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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.