Home / 389,931.30-584,387.35-282,223.33

Finding the Fourth Proportional to 389,931.30, 584,387.35 and 282,223.33

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Solution

The fourth proportional to 389,931.30, 584,387.35 and 282,223.33 is: 422,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,931.30 : 584,387.35 = 282,223.33 : x
  2. Step 2: Convert to fraction form
    389,931.30/584,387.35 = 282,223.33/x
  3. Step 3: Cross multiply
    389,931.30x = 584,387.35 × 282,223.33
  4. Step 4: Simplify right side
    389,931.30x = 164,927,741,760.35
  5. Step 5: Solve for x
    x = 164,927,741,760.35/389,931.30
  6. Step 6: Final answer
    x = 422,966.15

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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.