Home / 989,836.84-1,365,978.50-537,127.72

Finding the Fourth Proportional to 989,836.84, 1,365,978.50 and 537,127.72

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Solution

The fourth proportional to 989,836.84, 1,365,978.50 and 537,127.72 is: 741,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,836.84 : 1,365,978.50 = 537,127.72 : x
  2. Step 2: Convert to fraction form
    989,836.84/1,365,978.50 = 537,127.72/x
  3. Step 3: Cross multiply
    989,836.84x = 1,365,978.50 × 537,127.72
  4. Step 4: Simplify right side
    989,836.84x = 733,704,917,274.02
  5. Step 5: Solve for x
    x = 733,704,917,274.02/989,836.84
  6. Step 6: Final answer
    x = 741,238.24

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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.