Home / 1,551,042.81-2,140,387.70-862,695.20

Finding the Fourth Proportional to 1,551,042.81, 2,140,387.70 and 862,695.20

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Solution

The fourth proportional to 1,551,042.81, 2,140,387.70 and 862,695.20 is: 1,190,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,042.81 : 2,140,387.70 = 862,695.20 : x
  2. Step 2: Convert to fraction form
    1,551,042.81/2,140,387.70 = 862,695.20/x
  3. Step 3: Cross multiply
    1,551,042.81x = 2,140,387.70 × 862,695.20
  4. Step 4: Simplify right side
    1,551,042.81x = 1,846,502,195,966.53
  5. Step 5: Solve for x
    x = 1,846,502,195,966.53/1,551,042.81
  6. Step 6: Final answer
    x = 1,190,490.80

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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.