Home / 1,425,341.38-2,138,323.38-478,687.36

Finding the Fourth Proportional to 1,425,341.38, 2,138,323.38 and 478,687.36

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Solution

The fourth proportional to 1,425,341.38, 2,138,323.38 and 478,687.36 is: 718,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,341.38 : 2,138,323.38 = 478,687.36 : x
  2. Step 2: Convert to fraction form
    1,425,341.38/2,138,323.38 = 478,687.36/x
  3. Step 3: Cross multiply
    1,425,341.38x = 2,138,323.38 × 478,687.36
  4. Step 4: Simplify right side
    1,425,341.38x = 1,023,588,373,598.48
  5. Step 5: Solve for x
    x = 1,023,588,373,598.48/1,425,341.38
  6. Step 6: Final answer
    x = 718,135.59

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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.