Home / 985,651.38-1,478,560.04-311,717.71

Finding the Fourth Proportional to 985,651.38, 1,478,560.04 and 311,717.71

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Solution

The fourth proportional to 985,651.38, 1,478,560.04 and 311,717.71 is: 467,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,651.38 : 1,478,560.04 = 311,717.71 : x
  2. Step 2: Convert to fraction form
    985,651.38/1,478,560.04 = 311,717.71/x
  3. Step 3: Cross multiply
    985,651.38x = 1,478,560.04 × 311,717.71
  4. Step 4: Simplify right side
    985,651.38x = 460,893,346,849.20
  5. Step 5: Solve for x
    x = 460,893,346,849.20/985,651.38
  6. Step 6: Final answer
    x = 467,602.80

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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.