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Finding the Fourth Proportional to 520,482.33, 780,801.21 and 165,507.93

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Solution

The fourth proportional to 520,482.33, 780,801.21 and 165,507.93 is: 248,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,482.33 : 780,801.21 = 165,507.93 : x
  2. Step 2: Convert to fraction form
    520,482.33/780,801.21 = 165,507.93/x
  3. Step 3: Cross multiply
    520,482.33x = 780,801.21 × 165,507.93
  4. Step 4: Simplify right side
    520,482.33x = 129,228,792,008.60
  5. Step 5: Solve for x
    x = 129,228,792,008.60/520,482.33
  6. Step 6: Final answer
    x = 248,286.61

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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.