Home / 841,653.90-1,262,658.39-272,990.82

Finding the Fourth Proportional to 841,653.90, 1,262,658.39 and 272,990.82

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Solution

The fourth proportional to 841,653.90, 1,262,658.39 and 272,990.82 is: 409,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,653.90 : 1,262,658.39 = 272,990.82 : x
  2. Step 2: Convert to fraction form
    841,653.90/1,262,658.39 = 272,990.82/x
  3. Step 3: Cross multiply
    841,653.90x = 1,262,658.39 × 272,990.82
  4. Step 4: Simplify right side
    841,653.90x = 344,694,149,265.98
  5. Step 5: Solve for x
    x = 344,694,149,265.98/841,653.90
  6. Step 6: Final answer
    x = 409,543.82

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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.