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Finding the Fourth Proportional to 578,655.36, 868,115.52 and 223,672.32

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Solution

The fourth proportional to 578,655.36, 868,115.52 and 223,672.32 is: 335,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,655.36 : 868,115.52 = 223,672.32 : x
  2. Step 2: Convert to fraction form
    578,655.36/868,115.52 = 223,672.32/x
  3. Step 3: Cross multiply
    578,655.36x = 868,115.52 × 223,672.32
  4. Step 4: Simplify right side
    578,655.36x = 194,173,412,386.41
  5. Step 5: Solve for x
    x = 194,173,412,386.41/578,655.36
  6. Step 6: Final answer
    x = 335,559.69

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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.