Home / 747,473.35-1,031,154.43-489,236.61

Finding the Fourth Proportional to 747,473.35, 1,031,154.43 and 489,236.61

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Solution

The fourth proportional to 747,473.35, 1,031,154.43 and 489,236.61 is: 674,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,473.35 : 1,031,154.43 = 489,236.61 : x
  2. Step 2: Convert to fraction form
    747,473.35/1,031,154.43 = 489,236.61/x
  3. Step 3: Cross multiply
    747,473.35x = 1,031,154.43 × 489,236.61
  4. Step 4: Simplify right side
    747,473.35x = 504,478,497,719.68
  5. Step 5: Solve for x
    x = 504,478,497,719.68/747,473.35
  6. Step 6: Final answer
    x = 674,911.68

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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.