Home / 1,679,012.40-2,316,969.56-915,049.52

Finding the Fourth Proportional to 1,679,012.40, 2,316,969.56 and 915,049.52

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Solution

The fourth proportional to 1,679,012.40, 2,316,969.56 and 915,049.52 is: 1,262,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,012.40 : 2,316,969.56 = 915,049.52 : x
  2. Step 2: Convert to fraction form
    1,679,012.40/2,316,969.56 = 915,049.52/x
  3. Step 3: Cross multiply
    1,679,012.40x = 2,316,969.56 × 915,049.52
  4. Step 4: Simplify right side
    1,679,012.40x = 2,120,141,883,732.61
  5. Step 5: Solve for x
    x = 2,120,141,883,732.61/1,679,012.40
  6. Step 6: Final answer
    x = 1,262,731.52

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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.