Home / 976,831.20-1,465,173.90-408,065.40

Finding the Fourth Proportional to 976,831.20, 1,465,173.90 and 408,065.40

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Solution

The fourth proportional to 976,831.20, 1,465,173.90 and 408,065.40 is: 612,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,831.20 : 1,465,173.90 = 408,065.40 : x
  2. Step 2: Convert to fraction form
    976,831.20/1,465,173.90 = 408,065.40/x
  3. Step 3: Cross multiply
    976,831.20x = 1,465,173.90 × 408,065.40
  4. Step 4: Simplify right side
    976,831.20x = 597,886,773,573.06
  5. Step 5: Solve for x
    x = 597,886,773,573.06/976,831.20
  6. Step 6: Final answer
    x = 612,067.65

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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.