Home / 1,243,641.60-1,864,540.80-843,283.20

Finding the Fourth Proportional to 1,243,641.60, 1,864,540.80 and 843,283.20

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Solution

The fourth proportional to 1,243,641.60, 1,864,540.80 and 843,283.20 is: 1,264,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,641.60 : 1,864,540.80 = 843,283.20 : x
  2. Step 2: Convert to fraction form
    1,243,641.60/1,864,540.80 = 843,283.20/x
  3. Step 3: Cross multiply
    1,243,641.60x = 1,864,540.80 × 843,283.20
  4. Step 4: Simplify right side
    1,243,641.60x = 1,572,335,932,354.56
  5. Step 5: Solve for x
    x = 1,572,335,932,354.56/1,243,641.60
  6. Step 6: Final answer
    x = 1,264,299.89

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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.