Home / 581,945.64-802,821.20-420,545.04

Finding the Fourth Proportional to 581,945.64, 802,821.20 and 420,545.04

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Solution

The fourth proportional to 581,945.64, 802,821.20 and 420,545.04 is: 580,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,945.64 : 802,821.20 = 420,545.04 : x
  2. Step 2: Convert to fraction form
    581,945.64/802,821.20 = 420,545.04/x
  3. Step 3: Cross multiply
    581,945.64x = 802,821.20 × 420,545.04
  4. Step 4: Simplify right side
    581,945.64x = 337,622,473,666.85
  5. Step 5: Solve for x
    x = 337,622,473,666.85/581,945.64
  6. Step 6: Final answer
    x = 580,161.53

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1.5x scale

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.