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Finding the Fourth Proportional to 556,804.04, 834,933.90 and 388,405.04

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Solution

The fourth proportional to 556,804.04, 834,933.90 and 388,405.04 is: 582,417.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,804.04 : 834,933.90 = 388,405.04 : x
  2. Step 2: Convert to fraction form
    556,804.04/834,933.90 = 388,405.04/x
  3. Step 3: Cross multiply
    556,804.04x = 834,933.90 × 388,405.04
  4. Step 4: Simplify right side
    556,804.04x = 324,292,534,826.86
  5. Step 5: Solve for x
    x = 324,292,534,826.86/556,804.04
  6. Step 6: Final answer
    x = 582,417.71

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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.