Home / 1,625,371.68-2,438,446.80-678,215.52

Finding the Fourth Proportional to 1,625,371.68, 2,438,446.80 and 678,215.52

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Solution

The fourth proportional to 1,625,371.68, 2,438,446.80 and 678,215.52 is: 1,017,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625,371.68 : 2,438,446.80 = 678,215.52 : x
  2. Step 2: Convert to fraction form
    1,625,371.68/2,438,446.80 = 678,215.52/x
  3. Step 3: Cross multiply
    1,625,371.68x = 2,438,446.80 × 678,215.52
  4. Step 4: Simplify right side
    1,625,371.68x = 1,653,792,464,454.34
  5. Step 5: Solve for x
    x = 1,653,792,464,454.34/1,625,371.68
  6. Step 6: Final answer
    x = 1,017,485.71

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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.