Home / 831,624.60-1,247,145.30-432,132.60

Finding the Fourth Proportional to 831,624.60, 1,247,145.30 and 432,132.60

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Solution

The fourth proportional to 831,624.60, 1,247,145.30 and 432,132.60 is: 648,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,624.60 : 1,247,145.30 = 432,132.60 : x
  2. Step 2: Convert to fraction form
    831,624.60/1,247,145.30 = 432,132.60/x
  3. Step 3: Cross multiply
    831,624.60x = 1,247,145.30 × 432,132.60
  4. Step 4: Simplify right side
    831,624.60x = 538,932,141,066.78
  5. Step 5: Solve for x
    x = 538,932,141,066.78/831,624.60
  6. Step 6: Final answer
    x = 648,047.38

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Double scale
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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.