Home / 389,701.29-584,568.54-123,455.91

Finding the Fourth Proportional to 389,701.29, 584,568.54 and 123,455.91

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Solution

The fourth proportional to 389,701.29, 584,568.54 and 123,455.91 is: 185,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,701.29 : 584,568.54 = 123,455.91 : x
  2. Step 2: Convert to fraction form
    389,701.29/584,568.54 = 123,455.91/x
  3. Step 3: Cross multiply
    389,701.29x = 584,568.54 × 123,455.91
  4. Step 4: Simplify right side
    389,701.29x = 72,168,441,063.07
  5. Step 5: Solve for x
    x = 72,168,441,063.07/389,701.29
  6. Step 6: Final answer
    x = 185,189.13

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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.