Home / 641,304.90-961,826.13-220,613.58

Finding the Fourth Proportional to 641,304.90, 961,826.13 and 220,613.58

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Solution

The fourth proportional to 641,304.90, 961,826.13 and 220,613.58 is: 330,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,304.90 : 961,826.13 = 220,613.58 : x
  2. Step 2: Convert to fraction form
    641,304.90/961,826.13 = 220,613.58/x
  3. Step 3: Cross multiply
    641,304.90x = 961,826.13 × 220,613.58
  4. Step 4: Simplify right side
    641,304.90x = 212,191,905,876.85
  5. Step 5: Solve for x
    x = 212,191,905,876.85/641,304.90
  6. Step 6: Final answer
    x = 330,875.23

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1.5x scale

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.