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Finding the Fourth Proportional to 707,549.20, 976,405.24 and 385,253.44

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Solution

The fourth proportional to 707,549.20, 976,405.24 and 385,253.44 is: 531,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,549.20 : 976,405.24 = 385,253.44 : x
  2. Step 2: Convert to fraction form
    707,549.20/976,405.24 = 385,253.44/x
  3. Step 3: Cross multiply
    707,549.20x = 976,405.24 × 385,253.44
  4. Step 4: Simplify right side
    707,549.20x = 376,163,477,544.03
  5. Step 5: Solve for x
    x = 376,163,477,544.03/707,549.20
  6. Step 6: Final answer
    x = 531,642.86

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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.