Home / 690,353.80-1,034,348.10-548,636.20

Finding the Fourth Proportional to 690,353.80, 1,034,348.10 and 548,636.20

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Solution

The fourth proportional to 690,353.80, 1,034,348.10 and 548,636.20 is: 822,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,353.80 : 1,034,348.10 = 548,636.20 : x
  2. Step 2: Convert to fraction form
    690,353.80/1,034,348.10 = 548,636.20/x
  3. Step 3: Cross multiply
    690,353.80x = 1,034,348.10 × 548,636.20
  4. Step 4: Simplify right side
    690,353.80x = 567,480,811,061.22
  5. Step 5: Solve for x
    x = 567,480,811,061.22/690,353.80
  6. Step 6: Final answer
    x = 822,014.47

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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.