Home / 1,280,239.14-1,766,780.82-736,374.36

Finding the Fourth Proportional to 1,280,239.14, 1,766,780.82 and 736,374.36

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Solution

The fourth proportional to 1,280,239.14, 1,766,780.82 and 736,374.36 is: 1,016,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,239.14 : 1,766,780.82 = 736,374.36 : x
  2. Step 2: Convert to fraction form
    1,280,239.14/1,766,780.82 = 736,374.36/x
  3. Step 3: Cross multiply
    1,280,239.14x = 1,766,780.82 × 736,374.36
  4. Step 4: Simplify right side
    1,280,239.14x = 1,301,012,095,587.78
  5. Step 5: Solve for x
    x = 1,301,012,095,587.78/1,280,239.14
  6. Step 6: Final answer
    x = 1,016,225.84

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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.