Home / 390,933.24-585,294.05-248,425.28

Finding the Fourth Proportional to 390,933.24, 585,294.05 and 248,425.28

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Solution

The fourth proportional to 390,933.24, 585,294.05 and 248,425.28 is: 371,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,933.24 : 585,294.05 = 248,425.28 : x
  2. Step 2: Convert to fraction form
    390,933.24/585,294.05 = 248,425.28/x
  3. Step 3: Cross multiply
    390,933.24x = 585,294.05 × 248,425.28
  4. Step 4: Simplify right side
    390,933.24x = 145,401,838,143.03
  5. Step 5: Solve for x
    x = 145,401,838,143.03/390,933.24
  6. Step 6: Final answer
    x = 371,935.22

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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.