Home / 521,095.38-780,631.66-384,069.35

Finding the Fourth Proportional to 521,095.38, 780,631.66 and 384,069.35

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Solution

The fourth proportional to 521,095.38, 780,631.66 and 384,069.35 is: 575,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,095.38 : 780,631.66 = 384,069.35 : x
  2. Step 2: Convert to fraction form
    521,095.38/780,631.66 = 384,069.35/x
  3. Step 3: Cross multiply
    521,095.38x = 780,631.66 × 384,069.35
  4. Step 4: Simplify right side
    521,095.38x = 299,816,694,245.62
  5. Step 5: Solve for x
    x = 299,816,694,245.62/521,095.38
  6. Step 6: Final answer
    x = 575,358.57

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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.