Home / 478,944.80-718,287.60-141,984.80

Finding the Fourth Proportional to 478,944.80, 718,287.60 and 141,984.80

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Solution

The fourth proportional to 478,944.80, 718,287.60 and 141,984.80 is: 212,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,944.80 : 718,287.60 = 141,984.80 : x
  2. Step 2: Convert to fraction form
    478,944.80/718,287.60 = 141,984.80/x
  3. Step 3: Cross multiply
    478,944.80x = 718,287.60 × 141,984.80
  4. Step 4: Simplify right side
    478,944.80x = 101,985,921,228.48
  5. Step 5: Solve for x
    x = 101,985,921,228.48/478,944.80
  6. Step 6: Final answer
    x = 212,938.78

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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.