Home / 831,862.45-1,247,301.60-433,281.70

Finding the Fourth Proportional to 831,862.45, 1,247,301.60 and 433,281.70

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Solution

The fourth proportional to 831,862.45, 1,247,301.60 and 433,281.70 is: 649,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,862.45 : 1,247,301.60 = 433,281.70 : x
  2. Step 2: Convert to fraction form
    831,862.45/1,247,301.60 = 433,281.70/x
  3. Step 3: Cross multiply
    831,862.45x = 1,247,301.60 × 433,281.70
  4. Step 4: Simplify right side
    831,862.45x = 540,432,957,660.72
  5. Step 5: Solve for x
    x = 540,432,957,660.72/831,862.45
  6. Step 6: Final answer
    x = 649,666.25

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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.