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Finding the Fourth Proportional to 707,358.60, 976,125 and 385,062

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Solution

The fourth proportional to 707,358.60, 976,125 and 385,062 is: 531,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,358.60 : 976,125 = 385,062 : x
  2. Step 2: Convert to fraction form
    707,358.60/976,125 = 385,062/x
  3. Step 3: Cross multiply
    707,358.60x = 976,125 × 385,062
  4. Step 4: Simplify right side
    707,358.60x = 375,868,644,750
  5. Step 5: Solve for x
    x = 375,868,644,750/707,358.60
  6. Step 6: Final answer
    x = 531,369.30

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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.