Home / 691,849.29-954,750.47-390,041.13

Finding the Fourth Proportional to 691,849.29, 954,750.47 and 390,041.13

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Solution

The fourth proportional to 691,849.29, 954,750.47 and 390,041.13 is: 538,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,849.29 : 954,750.47 = 390,041.13 : x
  2. Step 2: Convert to fraction form
    691,849.29/954,750.47 = 390,041.13/x
  3. Step 3: Cross multiply
    691,849.29x = 954,750.47 × 390,041.13
  4. Step 4: Simplify right side
    691,849.29x = 372,391,950,236.63
  5. Step 5: Solve for x
    x = 372,391,950,236.63/691,849.29
  6. Step 6: Final answer
    x = 538,255.88

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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.