Home / 898,428.20-1,347,642.30-763,125.80

Finding the Fourth Proportional to 898,428.20, 1,347,642.30 and 763,125.80

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Solution

The fourth proportional to 898,428.20, 1,347,642.30 and 763,125.80 is: 1,144,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,428.20 : 1,347,642.30 = 763,125.80 : x
  2. Step 2: Convert to fraction form
    898,428.20/1,347,642.30 = 763,125.80/x
  3. Step 3: Cross multiply
    898,428.20x = 1,347,642.30 × 763,125.80
  4. Step 4: Simplify right side
    898,428.20x = 1,028,420,608,301.34
  5. Step 5: Solve for x
    x = 1,028,420,608,301.34/898,428.20
  6. Step 6: Final answer
    x = 1,144,688.70

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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.