Home / 989,740.30-1,365,857.49-537,031.30

Finding the Fourth Proportional to 989,740.30, 1,365,857.49 and 537,031.30

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Solution

The fourth proportional to 989,740.30, 1,365,857.49 and 537,031.30 is: 741,111.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,740.30 : 1,365,857.49 = 537,031.30 : x
  2. Step 2: Convert to fraction form
    989,740.30/1,365,857.49 = 537,031.30/x
  3. Step 3: Cross multiply
    989,740.30x = 1,365,857.49 × 537,031.30
  4. Step 4: Simplify right side
    989,740.30x = 733,508,223,469.44
  5. Step 5: Solve for x
    x = 733,508,223,469.44/989,740.30
  6. Step 6: Final answer
    x = 741,111.81

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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.