Home / 555,082.89-766,028.39-340,341.36

Finding the Fourth Proportional to 555,082.89, 766,028.39 and 340,341.36

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Solution

The fourth proportional to 555,082.89, 766,028.39 and 340,341.36 is: 469,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,082.89 : 766,028.39 = 340,341.36 : x
  2. Step 2: Convert to fraction form
    555,082.89/766,028.39 = 340,341.36/x
  3. Step 3: Cross multiply
    555,082.89x = 766,028.39 × 340,341.36
  4. Step 4: Simplify right side
    555,082.89x = 260,711,142,349.50
  5. Step 5: Solve for x
    x = 260,711,142,349.50/555,082.89
  6. Step 6: Final answer
    x = 469,679.66

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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.