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Finding the Fourth Proportional to 546,831.20, 820,246.80 and 321,960.80

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Solution

The fourth proportional to 546,831.20, 820,246.80 and 321,960.80 is: 482,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,831.20 : 820,246.80 = 321,960.80 : x
  2. Step 2: Convert to fraction form
    546,831.20/820,246.80 = 321,960.80/x
  3. Step 3: Cross multiply
    546,831.20x = 820,246.80 × 321,960.80
  4. Step 4: Simplify right side
    546,831.20x = 264,087,315,925.44
  5. Step 5: Solve for x
    x = 264,087,315,925.44/546,831.20
  6. Step 6: Final answer
    x = 482,941.20

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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.