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Finding the Fourth Proportional to 608,406.40, 912,765.12 and 234,328.96

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Solution

The fourth proportional to 608,406.40, 912,765.12 and 234,328.96 is: 351,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,406.40 : 912,765.12 = 234,328.96 : x
  2. Step 2: Convert to fraction form
    608,406.40/912,765.12 = 234,328.96/x
  3. Step 3: Cross multiply
    608,406.40x = 912,765.12 × 234,328.96
  4. Step 4: Simplify right side
    608,406.40x = 213,887,301,293.88
  5. Step 5: Solve for x
    x = 213,887,301,293.88/608,406.40
  6. Step 6: Final answer
    x = 351,553.34

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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.