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Finding the Fourth Proportional to 520,532.76, 780,799.14 and 165,547.56

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Solution

The fourth proportional to 520,532.76, 780,799.14 and 165,547.56 is: 248,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,532.76 : 780,799.14 = 165,547.56 : x
  2. Step 2: Convert to fraction form
    520,532.76/780,799.14 = 165,547.56/x
  3. Step 3: Cross multiply
    520,532.76x = 780,799.14 × 165,547.56
  4. Step 4: Simplify right side
    520,532.76x = 129,259,392,477.10
  5. Step 5: Solve for x
    x = 129,259,392,477.10/520,532.76
  6. Step 6: Final answer
    x = 248,321.34

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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.