Home / 1,142,446.64-1,710,475.08-861,082.16

Finding the Fourth Proportional to 1,142,446.64, 1,710,475.08 and 861,082.16

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Solution

The fourth proportional to 1,142,446.64, 1,710,475.08 and 861,082.16 is: 1,289,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,446.64 : 1,710,475.08 = 861,082.16 : x
  2. Step 2: Convert to fraction form
    1,142,446.64/1,710,475.08 = 861,082.16/x
  3. Step 3: Cross multiply
    1,142,446.64x = 1,710,475.08 × 861,082.16
  4. Step 4: Simplify right side
    1,142,446.64x = 1,472,859,576,512.57
  5. Step 5: Solve for x
    x = 1,472,859,576,512.57/1,142,446.64
  6. Step 6: Final answer
    x = 1,289,215.20

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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.