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Finding the Fourth Proportional to 702,778.32, 969,832.71 and 380,488.37

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Solution

The fourth proportional to 702,778.32, 969,832.71 and 380,488.37 is: 525,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,778.32 : 969,832.71 = 380,488.37 : x
  2. Step 2: Convert to fraction form
    702,778.32/969,832.71 = 380,488.37/x
  3. Step 3: Cross multiply
    702,778.32x = 969,832.71 × 380,488.37
  4. Step 4: Simplify right side
    702,778.32x = 369,010,062,151.42
  5. Step 5: Solve for x
    x = 369,010,062,151.42/702,778.32
  6. Step 6: Final answer
    x = 525,073.20

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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.