Home / 521,769.40-782,654.10-335,145.40

Finding the Fourth Proportional to 521,769.40, 782,654.10 and 335,145.40

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Solution

The fourth proportional to 521,769.40, 782,654.10 and 335,145.40 is: 502,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,769.40 : 782,654.10 = 335,145.40 : x
  2. Step 2: Convert to fraction form
    521,769.40/782,654.10 = 335,145.40/x
  3. Step 3: Cross multiply
    521,769.40x = 782,654.10 × 335,145.40
  4. Step 4: Simplify right side
    521,769.40x = 262,302,921,406.14
  5. Step 5: Solve for x
    x = 262,302,921,406.14/521,769.40
  6. Step 6: Final answer
    x = 502,718.10

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Similar ratio
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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.