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Finding the Fourth Proportional to 465,550.88, 696,948.50 and 287,485.36

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Solution

The fourth proportional to 465,550.88, 696,948.50 and 287,485.36 is: 430,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,550.88 : 696,948.50 = 287,485.36 : x
  2. Step 2: Convert to fraction form
    465,550.88/696,948.50 = 287,485.36/x
  3. Step 3: Cross multiply
    465,550.88x = 696,948.50 × 287,485.36
  4. Step 4: Simplify right side
    465,550.88x = 200,362,490,423.96
  5. Step 5: Solve for x
    x = 200,362,490,423.96/465,550.88
  6. Step 6: Final answer
    x = 430,377.21

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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.