Home / 972,145.20-1,458,217.80-340,831.20

Finding the Fourth Proportional to 972,145.20, 1,458,217.80 and 340,831.20

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Solution

The fourth proportional to 972,145.20, 1,458,217.80 and 340,831.20 is: 511,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,145.20 : 1,458,217.80 = 340,831.20 : x
  2. Step 2: Convert to fraction form
    972,145.20/1,458,217.80 = 340,831.20/x
  3. Step 3: Cross multiply
    972,145.20x = 1,458,217.80 × 340,831.20
  4. Step 4: Simplify right side
    972,145.20x = 497,006,122,635.36
  5. Step 5: Solve for x
    x = 497,006,122,635.36/972,145.20
  6. Step 6: Final answer
    x = 511,246.80

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Similar ratio
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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.