Home / 389,772.30-584,549.10-123,614.40

Finding the Fourth Proportional to 389,772.30, 584,549.10 and 123,614.40

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Solution

The fourth proportional to 389,772.30, 584,549.10 and 123,614.40 is: 185,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,772.30 : 584,549.10 = 123,614.40 : x
  2. Step 2: Convert to fraction form
    389,772.30/584,549.10 = 123,614.40/x
  3. Step 3: Cross multiply
    389,772.30x = 584,549.10 × 123,614.40
  4. Step 4: Simplify right side
    389,772.30x = 72,258,686,267.04
  5. Step 5: Solve for x
    x = 72,258,686,267.04/389,772.30
  6. Step 6: Final answer
    x = 185,386.92

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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.