Home / 1,572,472.20-2,169,328.56-999,204.78

Finding the Fourth Proportional to 1,572,472.20, 2,169,328.56 and 999,204.78

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Solution

The fourth proportional to 1,572,472.20, 2,169,328.56 and 999,204.78 is: 1,378,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,472.20 : 2,169,328.56 = 999,204.78 : x
  2. Step 2: Convert to fraction form
    1,572,472.20/2,169,328.56 = 999,204.78/x
  3. Step 3: Cross multiply
    1,572,472.20x = 2,169,328.56 × 999,204.78
  4. Step 4: Simplify right side
    1,572,472.20x = 2,167,603,466,542.52
  5. Step 5: Solve for x
    x = 2,167,603,466,542.52/1,572,472.20
  6. Step 6: Final answer
    x = 1,378,468.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.