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Finding the Fourth Proportional to 604,577.32, 905,487.36 and 289,257.28

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Solution

The fourth proportional to 604,577.32, 905,487.36 and 289,257.28 is: 433,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,577.32 : 905,487.36 = 289,257.28 : x
  2. Step 2: Convert to fraction form
    604,577.32/905,487.36 = 289,257.28/x
  3. Step 3: Cross multiply
    604,577.32x = 905,487.36 × 289,257.28
  4. Step 4: Simplify right side
    604,577.32x = 261,918,807,479.55
  5. Step 5: Solve for x
    x = 261,918,807,479.55/604,577.32
  6. Step 6: Final answer
    x = 433,226.32

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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.