Home / 648,030.60-972,045.90-487,067.40

Finding the Fourth Proportional to 648,030.60, 972,045.90 and 487,067.40

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Solution

The fourth proportional to 648,030.60, 972,045.90 and 487,067.40 is: 730,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,030.60 : 972,045.90 = 487,067.40 : x
  2. Step 2: Convert to fraction form
    648,030.60/972,045.90 = 487,067.40/x
  3. Step 3: Cross multiply
    648,030.60x = 972,045.90 × 487,067.40
  4. Step 4: Simplify right side
    648,030.60x = 473,451,869,193.66
  5. Step 5: Solve for x
    x = 473,451,869,193.66/648,030.60
  6. Step 6: Final answer
    x = 730,601.10

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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.