Home / 989,881.84-1,366,040.52-537,172.72

Finding the Fourth Proportional to 989,881.84, 1,366,040.52 and 537,172.72

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Solution

The fourth proportional to 989,881.84, 1,366,040.52 and 537,172.72 is: 741,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,881.84 : 1,366,040.52 = 537,172.72 : x
  2. Step 2: Convert to fraction form
    989,881.84/1,366,040.52 = 537,172.72/x
  3. Step 3: Cross multiply
    989,881.84x = 1,366,040.52 × 537,172.72
  4. Step 4: Simplify right side
    989,881.84x = 733,799,701,758.61
  5. Step 5: Solve for x
    x = 733,799,701,758.61/989,881.84
  6. Step 6: Final answer
    x = 741,300.30

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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.