Home / 989,990.52-1,366,186.56-537,281.52

Finding the Fourth Proportional to 989,990.52, 1,366,186.56 and 537,281.52

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Solution

The fourth proportional to 989,990.52, 1,366,186.56 and 537,281.52 is: 741,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,990.52 : 1,366,186.56 = 537,281.52 : x
  2. Step 2: Convert to fraction form
    989,990.52/1,366,186.56 = 537,281.52/x
  3. Step 3: Cross multiply
    989,990.52x = 1,366,186.56 × 537,281.52
  4. Step 4: Simplify right side
    989,990.52x = 734,026,791,560.37
  5. Step 5: Solve for x
    x = 734,026,791,560.37/989,990.52
  6. Step 6: Final answer
    x = 741,448.30

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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.