Home / 1,071,782.97-1,478,757.51-690,030.78

Finding the Fourth Proportional to 1,071,782.97, 1,478,757.51 and 690,030.78

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Solution

The fourth proportional to 1,071,782.97, 1,478,757.51 and 690,030.78 is: 952,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,782.97 : 1,478,757.51 = 690,030.78 : x
  2. Step 2: Convert to fraction form
    1,071,782.97/1,478,757.51 = 690,030.78/x
  3. Step 3: Cross multiply
    1,071,782.97x = 1,478,757.51 × 690,030.78
  4. Step 4: Simplify right side
    1,071,782.97x = 1,020,388,198,056.16
  5. Step 5: Solve for x
    x = 1,020,388,198,056.16/1,071,782.97
  6. Step 6: Final answer
    x = 952,047.41

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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.