Home / 547,690.60-819,923.10-408,068.20

Finding the Fourth Proportional to 547,690.60, 819,923.10 and 408,068.20

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Solution

The fourth proportional to 547,690.60, 819,923.10 and 408,068.20 is: 610,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,690.60 : 819,923.10 = 408,068.20 : x
  2. Step 2: Convert to fraction form
    547,690.60/819,923.10 = 408,068.20/x
  3. Step 3: Cross multiply
    547,690.60x = 819,923.10 × 408,068.20
  4. Step 4: Simplify right side
    547,690.60x = 334,584,543,555.42
  5. Step 5: Solve for x
    x = 334,584,543,555.42/547,690.60
  6. Step 6: Final answer
    x = 610,900.65

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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.