Home / 1,025,409.33-1,538,117.78-315,432.45

Finding the Fourth Proportional to 1,025,409.33, 1,538,117.78 and 315,432.45

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Solution

The fourth proportional to 1,025,409.33, 1,538,117.78 and 315,432.45 is: 473,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,409.33 : 1,538,117.78 = 315,432.45 : x
  2. Step 2: Convert to fraction form
    1,025,409.33/1,538,117.78 = 315,432.45/x
  3. Step 3: Cross multiply
    1,025,409.33x = 1,538,117.78 × 315,432.45
  4. Step 4: Simplify right side
    1,025,409.33x = 485,172,258,156.80
  5. Step 5: Solve for x
    x = 485,172,258,156.80/1,025,409.33
  6. Step 6: Final answer
    x = 473,149.84

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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.