Home / 989,868.20-1,366,018.11-537,159.20

Finding the Fourth Proportional to 989,868.20, 1,366,018.11 and 537,159.20

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Solution

The fourth proportional to 989,868.20, 1,366,018.11 and 537,159.20 is: 741,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,868.20 : 1,366,018.11 = 537,159.20 : x
  2. Step 2: Convert to fraction form
    989,868.20/1,366,018.11 = 537,159.20/x
  3. Step 3: Cross multiply
    989,868.20x = 1,366,018.11 × 537,159.20
  4. Step 4: Simplify right side
    989,868.20x = 733,769,188,323.02
  5. Step 5: Solve for x
    x = 733,769,188,323.02/989,868.20
  6. Step 6: Final answer
    x = 741,279.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.