Home / 386,401.61-532,618.10-304,596.45

Finding the Fourth Proportional to 386,401.61, 532,618.10 and 304,596.45

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Solution

The fourth proportional to 386,401.61, 532,618.10 and 304,596.45 is: 419,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,401.61 : 532,618.10 = 304,596.45 : x
  2. Step 2: Convert to fraction form
    386,401.61/532,618.10 = 304,596.45/x
  3. Step 3: Cross multiply
    386,401.61x = 532,618.10 × 304,596.45
  4. Step 4: Simplify right side
    386,401.61x = 162,233,582,465.75
  5. Step 5: Solve for x
    x = 162,233,582,465.75/386,401.61
  6. Step 6: Final answer
    x = 419,857.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.