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Finding the Fourth Proportional to 829,042.80, 1,144,079 and 471,346.80

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Solution

The fourth proportional to 829,042.80, 1,144,079 and 471,346.80 is: 650,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,042.80 : 1,144,079 = 471,346.80 : x
  2. Step 2: Convert to fraction form
    829,042.80/1,144,079 = 471,346.80/x
  3. Step 3: Cross multiply
    829,042.80x = 1,144,079 × 471,346.80
  4. Step 4: Simplify right side
    829,042.80x = 539,257,975,597.20
  5. Step 5: Solve for x
    x = 539,257,975,597.20/829,042.80
  6. Step 6: Final answer
    x = 650,458.55

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Double scale
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Similar ratio
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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.