Home / 690,347.80-1,034,339.10-548,630.20

Finding the Fourth Proportional to 690,347.80, 1,034,339.10 and 548,630.20

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Solution

The fourth proportional to 690,347.80, 1,034,339.10 and 548,630.20 is: 822,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,347.80 : 1,034,339.10 = 548,630.20 : x
  2. Step 2: Convert to fraction form
    690,347.80/1,034,339.10 = 548,630.20/x
  3. Step 3: Cross multiply
    690,347.80x = 1,034,339.10 × 548,630.20
  4. Step 4: Simplify right side
    690,347.80x = 567,469,667,300.82
  5. Step 5: Solve for x
    x = 567,469,667,300.82/690,347.80
  6. Step 6: Final answer
    x = 822,005.47

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1.5x scale

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.