Home / 987,569.80-1,362,839.54-534,851.72

Finding the Fourth Proportional to 987,569.80, 1,362,839.54 and 534,851.72

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Solution

The fourth proportional to 987,569.80, 1,362,839.54 and 534,851.72 is: 738,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,569.80 : 1,362,839.54 = 534,851.72 : x
  2. Step 2: Convert to fraction form
    987,569.80/1,362,839.54 = 534,851.72/x
  3. Step 3: Cross multiply
    987,569.80x = 1,362,839.54 × 534,851.72
  4. Step 4: Simplify right side
    987,569.80x = 728,917,072,053.01
  5. Step 5: Solve for x
    x = 728,917,072,053.01/987,569.80
  6. Step 6: Final answer
    x = 738,091.70

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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.