Home / 1,702,930.80-2,350,385.28-978,275.52

Finding the Fourth Proportional to 1,702,930.80, 2,350,385.28 and 978,275.52

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Solution

The fourth proportional to 1,702,930.80, 2,350,385.28 and 978,275.52 is: 1,350,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,930.80 : 2,350,385.28 = 978,275.52 : x
  2. Step 2: Convert to fraction form
    1,702,930.80/2,350,385.28 = 978,275.52/x
  3. Step 3: Cross multiply
    1,702,930.80x = 2,350,385.28 × 978,275.52
  4. Step 4: Simplify right side
    1,702,930.80x = 2,299,324,381,992.35
  5. Step 5: Solve for x
    x = 2,299,324,381,992.35/1,702,930.80
  6. Step 6: Final answer
    x = 1,350,215.98

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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.