Home / 690,355.80-1,034,351.10-548,638.20

Finding the Fourth Proportional to 690,355.80, 1,034,351.10 and 548,638.20

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Solution

The fourth proportional to 690,355.80, 1,034,351.10 and 548,638.20 is: 822,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,355.80 : 1,034,351.10 = 548,638.20 : x
  2. Step 2: Convert to fraction form
    690,355.80/1,034,351.10 = 548,638.20/x
  3. Step 3: Cross multiply
    690,355.80x = 1,034,351.10 × 548,638.20
  4. Step 4: Simplify right side
    690,355.80x = 567,484,525,672.02
  5. Step 5: Solve for x
    x = 567,484,525,672.02/690,355.80
  6. Step 6: Final answer
    x = 822,017.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.