Home / 429,471.04-644,460-163,455.52

Finding the Fourth Proportional to 429,471.04, 644,460 and 163,455.52

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Solution

The fourth proportional to 429,471.04, 644,460 and 163,455.52 is: 245,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,471.04 : 644,460 = 163,455.52 : x
  2. Step 2: Convert to fraction form
    429,471.04/644,460 = 163,455.52/x
  3. Step 3: Cross multiply
    429,471.04x = 644,460 × 163,455.52
  4. Step 4: Simplify right side
    429,471.04x = 105,340,544,419.20
  5. Step 5: Solve for x
    x = 105,340,544,419.20/429,471.04
  6. Step 6: Final answer
    x = 245,279.74

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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.