Home / 1,500,233.57-2,070,306.19-811,890.31

Finding the Fourth Proportional to 1,500,233.57, 2,070,306.19 and 811,890.31

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Solution

The fourth proportional to 1,500,233.57, 2,070,306.19 and 811,890.31 is: 1,120,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,233.57 : 2,070,306.19 = 811,890.31 : x
  2. Step 2: Convert to fraction form
    1,500,233.57/2,070,306.19 = 811,890.31/x
  3. Step 3: Cross multiply
    1,500,233.57x = 2,070,306.19 × 811,890.31
  4. Step 4: Simplify right side
    1,500,233.57x = 1,680,861,534,394.02
  5. Step 5: Solve for x
    x = 1,680,861,534,394.02/1,500,233.57
  6. Step 6: Final answer
    x = 1,120,399.90

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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.