Home / 731,790.60-1,097,685.90-432,414.60

Finding the Fourth Proportional to 731,790.60, 1,097,685.90 and 432,414.60

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Solution

The fourth proportional to 731,790.60, 1,097,685.90 and 432,414.60 is: 648,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,790.60 : 1,097,685.90 = 432,414.60 : x
  2. Step 2: Convert to fraction form
    731,790.60/1,097,685.90 = 432,414.60/x
  3. Step 3: Cross multiply
    731,790.60x = 1,097,685.90 × 432,414.60
  4. Step 4: Simplify right side
    731,790.60x = 474,655,409,374.14
  5. Step 5: Solve for x
    x = 474,655,409,374.14/731,790.60
  6. Step 6: Final answer
    x = 648,621.90

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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.