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Finding the Fourth Proportional to 440,763.50, 660,587.54 and 216,071.12

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Solution

The fourth proportional to 440,763.50, 660,587.54 and 216,071.12 is: 323,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,763.50 : 660,587.54 = 216,071.12 : x
  2. Step 2: Convert to fraction form
    440,763.50/660,587.54 = 216,071.12/x
  3. Step 3: Cross multiply
    440,763.50x = 660,587.54 × 216,071.12
  4. Step 4: Simplify right side
    440,763.50x = 142,733,889,625.85
  5. Step 5: Solve for x
    x = 142,733,889,625.85/440,763.50
  6. Step 6: Final answer
    x = 323,833.28

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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.