Home / 939,442.80-1,409,164.20-408,001.80

Finding the Fourth Proportional to 939,442.80, 1,409,164.20 and 408,001.80

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Solution

The fourth proportional to 939,442.80, 1,409,164.20 and 408,001.80 is: 612,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,442.80 : 1,409,164.20 = 408,001.80 : x
  2. Step 2: Convert to fraction form
    939,442.80/1,409,164.20 = 408,001.80/x
  3. Step 3: Cross multiply
    939,442.80x = 1,409,164.20 × 408,001.80
  4. Step 4: Simplify right side
    939,442.80x = 574,941,530,095.56
  5. Step 5: Solve for x
    x = 574,941,530,095.56/939,442.80
  6. Step 6: Final answer
    x = 612,002.70

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1.5x scale

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.