Home / 429,263.46-643,920.96-113,719.50

Finding the Fourth Proportional to 429,263.46, 643,920.96 and 113,719.50

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Solution

The fourth proportional to 429,263.46, 643,920.96 and 113,719.50 is: 170,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,263.46 : 643,920.96 = 113,719.50 : x
  2. Step 2: Convert to fraction form
    429,263.46/643,920.96 = 113,719.50/x
  3. Step 3: Cross multiply
    429,263.46x = 643,920.96 × 113,719.50
  4. Step 4: Simplify right side
    429,263.46x = 73,226,369,610.72
  5. Step 5: Solve for x
    x = 73,226,369,610.72/429,263.46
  6. Step 6: Final answer
    x = 170,586.08

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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.