Home / 2,177,307.60-3,264,406.20-978,248.40

Finding the Fourth Proportional to 2,177,307.60, 3,264,406.20 and 978,248.40

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Solution

The fourth proportional to 2,177,307.60, 3,264,406.20 and 978,248.40 is: 1,466,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177,307.60 : 3,264,406.20 = 978,248.40 : x
  2. Step 2: Convert to fraction form
    2,177,307.60/3,264,406.20 = 978,248.40/x
  3. Step 3: Cross multiply
    2,177,307.60x = 3,264,406.20 × 978,248.40
  4. Step 4: Simplify right side
    2,177,307.60x = 3,193,400,142,100.08
  5. Step 5: Solve for x
    x = 3,193,400,142,100.08/2,177,307.60
  6. Step 6: Final answer
    x = 1,466,673.86

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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.