Home / 1,440,835.52-2,161,253.24-542,478.80

Finding the Fourth Proportional to 1,440,835.52, 2,161,253.24 and 542,478.80

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Solution

The fourth proportional to 1,440,835.52, 2,161,253.24 and 542,478.80 is: 813,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,835.52 : 2,161,253.24 = 542,478.80 : x
  2. Step 2: Convert to fraction form
    1,440,835.52/2,161,253.24 = 542,478.80/x
  3. Step 3: Cross multiply
    1,440,835.52x = 2,161,253.24 × 542,478.80
  4. Step 4: Simplify right side
    1,440,835.52x = 1,172,434,064,131.31
  5. Step 5: Solve for x
    x = 1,172,434,064,131.31/1,440,835.52
  6. Step 6: Final answer
    x = 813,718.18

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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.