Home / 1,487,645.20-2,053,939-1,142,867.04

Finding the Fourth Proportional to 1,487,645.20, 2,053,939 and 1,142,867.04

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Solution

The fourth proportional to 1,487,645.20, 2,053,939 and 1,142,867.04 is: 1,577,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,645.20 : 2,053,939 = 1,142,867.04 : x
  2. Step 2: Convert to fraction form
    1,487,645.20/2,053,939 = 1,142,867.04/x
  3. Step 3: Cross multiply
    1,487,645.20x = 2,053,939 × 1,142,867.04
  4. Step 4: Simplify right side
    1,487,645.20x = 2,347,379,185,270.56
  5. Step 5: Solve for x
    x = 2,347,379,185,270.56/1,487,645.20
  6. Step 6: Final answer
    x = 1,577,916.01

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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.