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Finding the Fourth Proportional to 521,701.65, 782,552.48 and 477,961.65

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Solution

The fourth proportional to 521,701.65, 782,552.48 and 477,961.65 is: 716,942.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,701.65 : 782,552.48 = 477,961.65 : x
  2. Step 2: Convert to fraction form
    521,701.65/782,552.48 = 477,961.65/x
  3. Step 3: Cross multiply
    521,701.65x = 782,552.48 × 477,961.65
  4. Step 4: Simplify right side
    521,701.65x = 374,030,072,162.58
  5. Step 5: Solve for x
    x = 374,030,072,162.58/521,701.65
  6. Step 6: Final answer
    x = 716,942.48

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Double scale
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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.