Home / 425,629.08-636,561.18-378,574.56

Finding the Fourth Proportional to 425,629.08, 636,561.18 and 378,574.56

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Solution

The fourth proportional to 425,629.08, 636,561.18 and 378,574.56 is: 566,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,629.08 : 636,561.18 = 378,574.56 : x
  2. Step 2: Convert to fraction form
    425,629.08/636,561.18 = 378,574.56/x
  3. Step 3: Cross multiply
    425,629.08x = 636,561.18 × 378,574.56
  4. Step 4: Simplify right side
    425,629.08x = 240,985,868,631.58
  5. Step 5: Solve for x
    x = 240,985,868,631.58/425,629.08
  6. Step 6: Final answer
    x = 566,187.51

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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.