Home / 1,142,426.64-1,710,445.08-861,062.16

Finding the Fourth Proportional to 1,142,426.64, 1,710,445.08 and 861,062.16

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Solution

The fourth proportional to 1,142,426.64, 1,710,445.08 and 861,062.16 is: 1,289,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,426.64 : 1,710,445.08 = 861,062.16 : x
  2. Step 2: Convert to fraction form
    1,142,426.64/1,710,445.08 = 861,062.16/x
  3. Step 3: Cross multiply
    1,142,426.64x = 1,710,445.08 × 861,062.16
  4. Step 4: Simplify right side
    1,142,426.64x = 1,472,799,535,146.17
  5. Step 5: Solve for x
    x = 1,472,799,535,146.17/1,142,426.64
  6. Step 6: Final answer
    x = 1,289,185.22

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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.