Home / 809,875.40-1,214,121.90-572,471.24

Finding the Fourth Proportional to 809,875.40, 1,214,121.90 and 572,471.24

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Solution

The fourth proportional to 809,875.40, 1,214,121.90 and 572,471.24 is: 858,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,875.40 : 1,214,121.90 = 572,471.24 : x
  2. Step 2: Convert to fraction form
    809,875.40/1,214,121.90 = 572,471.24/x
  3. Step 3: Cross multiply
    809,875.40x = 1,214,121.90 × 572,471.24
  4. Step 4: Simplify right side
    809,875.40x = 695,049,869,604.16
  5. Step 5: Solve for x
    x = 695,049,869,604.16/809,875.40
  6. Step 6: Final answer
    x = 858,218.28

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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.