Home / 872,244.20-1,308,431.10-311,205.80

Finding the Fourth Proportional to 872,244.20, 1,308,431.10 and 311,205.80

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Solution

The fourth proportional to 872,244.20, 1,308,431.10 and 311,205.80 is: 466,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,244.20 : 1,308,431.10 = 311,205.80 : x
  2. Step 2: Convert to fraction form
    872,244.20/1,308,431.10 = 311,205.80/x
  3. Step 3: Cross multiply
    872,244.20x = 1,308,431.10 × 311,205.80
  4. Step 4: Simplify right side
    872,244.20x = 407,191,347,220.38
  5. Step 5: Solve for x
    x = 407,191,347,220.38/872,244.20
  6. Step 6: Final answer
    x = 466,831.82

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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.