Home / 1,478,432.80-2,216,774.40-769,844.80

Finding the Fourth Proportional to 1,478,432.80, 2,216,774.40 and 769,844.80

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Solution

The fourth proportional to 1,478,432.80, 2,216,774.40 and 769,844.80 is: 1,154,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,432.80 : 2,216,774.40 = 769,844.80 : x
  2. Step 2: Convert to fraction form
    1,478,432.80/2,216,774.40 = 769,844.80/x
  3. Step 3: Cross multiply
    1,478,432.80x = 2,216,774.40 × 769,844.80
  4. Step 4: Simplify right side
    1,478,432.80x = 1,706,572,244,613.12
  5. Step 5: Solve for x
    x = 1,706,572,244,613.12/1,478,432.80
  6. Step 6: Final answer
    x = 1,154,311.68

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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.