Home / 927,750.78-1,391,187.55-359,398.08

Finding the Fourth Proportional to 927,750.78, 1,391,187.55 and 359,398.08

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Solution

The fourth proportional to 927,750.78, 1,391,187.55 and 359,398.08 is: 538,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,750.78 : 1,391,187.55 = 359,398.08 : x
  2. Step 2: Convert to fraction form
    927,750.78/1,391,187.55 = 359,398.08/x
  3. Step 3: Cross multiply
    927,750.78x = 1,391,187.55 × 359,398.08
  4. Step 4: Simplify right side
    927,750.78x = 499,990,134,389.90
  5. Step 5: Solve for x
    x = 499,990,134,389.90/927,750.78
  6. Step 6: Final answer
    x = 538,927.20

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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.