Home / 1,025,328.60-1,538,211.60-315,428.40

Finding the Fourth Proportional to 1,025,328.60, 1,538,211.60 and 315,428.40

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Solution

The fourth proportional to 1,025,328.60, 1,538,211.60 and 315,428.40 is: 473,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,328.60 : 1,538,211.60 = 315,428.40 : x
  2. Step 2: Convert to fraction form
    1,025,328.60/1,538,211.60 = 315,428.40/x
  3. Step 3: Cross multiply
    1,025,328.60x = 1,538,211.60 × 315,428.40
  4. Step 4: Simplify right side
    1,025,328.60x = 485,195,623,849.44
  5. Step 5: Solve for x
    x = 485,195,623,849.44/1,025,328.60
  6. Step 6: Final answer
    x = 473,209.88

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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.