Home / 1,478,178.72-2,217,248.64-356,238

Finding the Fourth Proportional to 1,478,178.72, 2,217,248.64 and 356,238

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Solution

The fourth proportional to 1,478,178.72, 2,217,248.64 and 356,238 is: 534,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,178.72 : 2,217,248.64 = 356,238 : x
  2. Step 2: Convert to fraction form
    1,478,178.72/2,217,248.64 = 356,238/x
  3. Step 3: Cross multiply
    1,478,178.72x = 2,217,248.64 × 356,238
  4. Step 4: Simplify right side
    1,478,178.72x = 789,868,221,016.32
  5. Step 5: Solve for x
    x = 789,868,221,016.32/1,478,178.72
  6. Step 6: Final answer
    x = 534,352.32

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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.