Home / 731,445.12-1,009,389.60-409,153.68

Finding the Fourth Proportional to 731,445.12, 1,009,389.60 and 409,153.68

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Solution

The fourth proportional to 731,445.12, 1,009,389.60 and 409,153.68 is: 564,629.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,445.12 : 1,009,389.60 = 409,153.68 : x
  2. Step 2: Convert to fraction form
    731,445.12/1,009,389.60 = 409,153.68/x
  3. Step 3: Cross multiply
    731,445.12x = 1,009,389.60 × 409,153.68
  4. Step 4: Simplify right side
    731,445.12x = 412,995,469,393.73
  5. Step 5: Solve for x
    x = 412,995,469,393.73/731,445.12
  6. Step 6: Final answer
    x = 564,629.47

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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.