Home / 872,034.60-1,308,887.10-451,612.20

Finding the Fourth Proportional to 872,034.60, 1,308,887.10 and 451,612.20

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Solution

The fourth proportional to 872,034.60, 1,308,887.10 and 451,612.20 is: 677,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,034.60 : 1,308,887.10 = 451,612.20 : x
  2. Step 2: Convert to fraction form
    872,034.60/1,308,887.10 = 451,612.20/x
  3. Step 3: Cross multiply
    872,034.60x = 1,308,887.10 × 451,612.20
  4. Step 4: Simplify right side
    872,034.60x = 591,109,382,782.62
  5. Step 5: Solve for x
    x = 591,109,382,782.62/872,034.60
  6. Step 6: Final answer
    x = 677,850.84

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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.