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Finding the Fourth Proportional to 872,793.01, 1,204,424.15 and 480,289.39

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Solution

The fourth proportional to 872,793.01, 1,204,424.15 and 480,289.39 is: 662,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,793.01 : 1,204,424.15 = 480,289.39 : x
  2. Step 2: Convert to fraction form
    872,793.01/1,204,424.15 = 480,289.39/x
  3. Step 3: Cross multiply
    872,793.01x = 1,204,424.15 × 480,289.39
  4. Step 4: Simplify right side
    872,793.01x = 578,472,134,892.26
  5. Step 5: Solve for x
    x = 578,472,134,892.26/872,793.01
  6. Step 6: Final answer
    x = 662,782.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.