Home / 672,443.10-1,008,664.65-514,979.10

Finding the Fourth Proportional to 672,443.10, 1,008,664.65 and 514,979.10

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Solution

The fourth proportional to 672,443.10, 1,008,664.65 and 514,979.10 is: 772,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,443.10 : 1,008,664.65 = 514,979.10 : x
  2. Step 2: Convert to fraction form
    672,443.10/1,008,664.65 = 514,979.10/x
  3. Step 3: Cross multiply
    672,443.10x = 1,008,664.65 × 514,979.10
  4. Step 4: Simplify right side
    672,443.10x = 519,441,213,658.82
  5. Step 5: Solve for x
    x = 519,441,213,658.82/672,443.10
  6. Step 6: Final answer
    x = 772,468.65

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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.