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Finding the Fourth Proportional to 555,081.31, 766,030.76 and 340,179.85

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Solution

The fourth proportional to 555,081.31, 766,030.76 and 340,179.85 is: 469,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,081.31 : 766,030.76 = 340,179.85 : x
  2. Step 2: Convert to fraction form
    555,081.31/766,030.76 = 340,179.85/x
  3. Step 3: Cross multiply
    555,081.31x = 766,030.76 × 340,179.85
  4. Step 4: Simplify right side
    555,081.31x = 260,588,229,032.19
  5. Step 5: Solve for x
    x = 260,588,229,032.19/555,081.31
  6. Step 6: Final answer
    x = 469,459.56

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1.5x scale

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.