Home / 1,387,311.71-2,081,134.16-488,567.57

Finding the Fourth Proportional to 1,387,311.71, 2,081,134.16 and 488,567.57

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Solution

The fourth proportional to 1,387,311.71, 2,081,134.16 and 488,567.57 is: 732,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,311.71 : 2,081,134.16 = 488,567.57 : x
  2. Step 2: Convert to fraction form
    1,387,311.71/2,081,134.16 = 488,567.57/x
  3. Step 3: Cross multiply
    1,387,311.71x = 2,081,134.16 × 488,567.57
  4. Step 4: Simplify right side
    1,387,311.71x = 1,016,774,656,952.35
  5. Step 5: Solve for x
    x = 1,016,774,656,952.35/1,387,311.71
  6. Step 6: Final answer
    x = 732,910.02

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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.