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Finding the Fourth Proportional to 702,805.59, 969,867.27 and 380,514.69

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Solution

The fourth proportional to 702,805.59, 969,867.27 and 380,514.69 is: 525,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,805.59 : 969,867.27 = 380,514.69 : x
  2. Step 2: Convert to fraction form
    702,805.59/969,867.27 = 380,514.69/x
  3. Step 3: Cross multiply
    702,805.59x = 969,867.27 × 380,514.69
  4. Step 4: Simplify right side
    702,805.59x = 369,048,743,585.20
  5. Step 5: Solve for x
    x = 369,048,743,585.20/702,805.59
  6. Step 6: Final answer
    x = 525,107.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.