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Finding the Fourth Proportional to 707,522.16, 976,399.20 and 385,245.84

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Solution

The fourth proportional to 707,522.16, 976,399.20 and 385,245.84 is: 531,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,522.16 : 976,399.20 = 385,245.84 : x
  2. Step 2: Convert to fraction form
    707,522.16/976,399.20 = 385,245.84/x
  3. Step 3: Cross multiply
    707,522.16x = 976,399.20 × 385,245.84
  4. Step 4: Simplify right side
    707,522.16x = 376,153,729,979.33
  5. Step 5: Solve for x
    x = 376,153,729,979.33/707,522.16
  6. Step 6: Final answer
    x = 531,649.40

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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.