Home / 928,490.12-1,392,859.10-367,393.40

Finding the Fourth Proportional to 928,490.12, 1,392,859.10 and 367,393.40

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Solution

The fourth proportional to 928,490.12, 1,392,859.10 and 367,393.40 is: 551,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,490.12 : 1,392,859.10 = 367,393.40 : x
  2. Step 2: Convert to fraction form
    928,490.12/1,392,859.10 = 367,393.40/x
  3. Step 3: Cross multiply
    928,490.12x = 1,392,859.10 × 367,393.40
  4. Step 4: Simplify right side
    928,490.12x = 511,727,234,424.13
  5. Step 5: Solve for x
    x = 511,727,234,424.13/928,490.12
  6. Step 6: Final answer
    x = 551,139.13

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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.