Home / 1,078,154.60-1,617,231.90-679,245.80

Finding the Fourth Proportional to 1,078,154.60, 1,617,231.90 and 679,245.80

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Solution

The fourth proportional to 1,078,154.60, 1,617,231.90 and 679,245.80 is: 1,018,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,154.60 : 1,617,231.90 = 679,245.80 : x
  2. Step 2: Convert to fraction form
    1,078,154.60/1,617,231.90 = 679,245.80/x
  3. Step 3: Cross multiply
    1,078,154.60x = 1,617,231.90 × 679,245.80
  4. Step 4: Simplify right side
    1,078,154.60x = 1,098,497,975,701.02
  5. Step 5: Solve for x
    x = 1,098,497,975,701.02/1,078,154.60
  6. Step 6: Final answer
    x = 1,018,868.70

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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.