Home / 1,252,439.28-1,728,369.90-679,484.16

Finding the Fourth Proportional to 1,252,439.28, 1,728,369.90 and 679,484.16

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Solution

The fourth proportional to 1,252,439.28, 1,728,369.90 and 679,484.16 is: 937,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,439.28 : 1,728,369.90 = 679,484.16 : x
  2. Step 2: Convert to fraction form
    1,252,439.28/1,728,369.90 = 679,484.16/x
  3. Step 3: Cross multiply
    1,252,439.28x = 1,728,369.90 × 679,484.16
  4. Step 4: Simplify right side
    1,252,439.28x = 1,174,399,969,670.78
  5. Step 5: Solve for x
    x = 1,174,399,969,670.78/1,252,439.28
  6. Step 6: Final answer
    x = 937,690.14

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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.