Home / 676,248.72-1,012,763.07-391,338.69

Finding the Fourth Proportional to 676,248.72, 1,012,763.07 and 391,338.69

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Solution

The fourth proportional to 676,248.72, 1,012,763.07 and 391,338.69 is: 586,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,248.72 : 1,012,763.07 = 391,338.69 : x
  2. Step 2: Convert to fraction form
    676,248.72/1,012,763.07 = 391,338.69/x
  3. Step 3: Cross multiply
    676,248.72x = 1,012,763.07 × 391,338.69
  4. Step 4: Simplify right side
    676,248.72x = 396,333,373,094.18
  5. Step 5: Solve for x
    x = 396,333,373,094.18/676,248.72
  6. Step 6: Final answer
    x = 586,076.34

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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.