Home / 1,071,787.50-1,478,763.72-690,035.28

Finding the Fourth Proportional to 1,071,787.50, 1,478,763.72 and 690,035.28

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Solution

The fourth proportional to 1,071,787.50, 1,478,763.72 and 690,035.28 is: 952,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,787.50 : 1,478,763.72 = 690,035.28 : x
  2. Step 2: Convert to fraction form
    1,071,787.50/1,478,763.72 = 690,035.28/x
  3. Step 3: Cross multiply
    1,071,787.50x = 1,478,763.72 × 690,035.28
  4. Step 4: Simplify right side
    1,071,787.50x = 1,020,399,137,584.04
  5. Step 5: Solve for x
    x = 1,020,399,137,584.04/1,071,787.50
  6. Step 6: Final answer
    x = 952,053.59

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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.