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Finding the Fourth Proportional to 556,803.04, 834,932.40 and 388,404.04

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Solution

The fourth proportional to 556,803.04, 834,932.40 and 388,404.04 is: 582,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,803.04 : 834,932.40 = 388,404.04 : x
  2. Step 2: Convert to fraction form
    556,803.04/834,932.40 = 388,404.04/x
  3. Step 3: Cross multiply
    556,803.04x = 834,932.40 × 388,404.04
  4. Step 4: Simplify right side
    556,803.04x = 324,291,117,286.90
  5. Step 5: Solve for x
    x = 324,291,117,286.90/556,803.04
  6. Step 6: Final answer
    x = 582,416.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.