Home / 989,863.70-1,484,795.55-691,265.30

Finding the Fourth Proportional to 989,863.70, 1,484,795.55 and 691,265.30

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Solution

The fourth proportional to 989,863.70, 1,484,795.55 and 691,265.30 is: 1,036,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,863.70 : 1,484,795.55 = 691,265.30 : x
  2. Step 2: Convert to fraction form
    989,863.70/1,484,795.55 = 691,265.30/x
  3. Step 3: Cross multiply
    989,863.70x = 1,484,795.55 × 691,265.30
  4. Step 4: Simplify right side
    989,863.70x = 1,026,387,641,309.42
  5. Step 5: Solve for x
    x = 1,026,387,641,309.42/989,863.70
  6. Step 6: Final answer
    x = 1,036,897.95

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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.