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Finding the Fourth Proportional to 587,364.40, 880,355.40 and 306,737.20

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Solution

The fourth proportional to 587,364.40, 880,355.40 and 306,737.20 is: 459,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,364.40 : 880,355.40 = 306,737.20 : x
  2. Step 2: Convert to fraction form
    587,364.40/880,355.40 = 306,737.20/x
  3. Step 3: Cross multiply
    587,364.40x = 880,355.40 × 306,737.20
  4. Step 4: Simplify right side
    587,364.40x = 270,037,750,400.88
  5. Step 5: Solve for x
    x = 270,037,750,400.88/587,364.40
  6. Step 6: Final answer
    x = 459,744.84

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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.