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Finding the Fourth Proportional to 707,400.60, 976,182.96 and 385,104

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Solution

The fourth proportional to 707,400.60, 976,182.96 and 385,104 is: 531,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,400.60 : 976,182.96 = 385,104 : x
  2. Step 2: Convert to fraction form
    707,400.60/976,182.96 = 385,104/x
  3. Step 3: Cross multiply
    707,400.60x = 976,182.96 × 385,104
  4. Step 4: Simplify right side
    707,400.60x = 375,931,962,627.84
  5. Step 5: Solve for x
    x = 375,931,962,627.84/707,400.60
  6. Step 6: Final answer
    x = 531,427.26

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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.