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Finding the Fourth Proportional to 465,344.88, 696,639.51 and 287,279.34

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Solution

The fourth proportional to 465,344.88, 696,639.51 and 287,279.34 is: 430,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,344.88 : 696,639.51 = 287,279.34 : x
  2. Step 2: Convert to fraction form
    465,344.88/696,639.51 = 287,279.34/x
  3. Step 3: Cross multiply
    465,344.88x = 696,639.51 × 287,279.34
  4. Step 4: Simplify right side
    465,344.88x = 200,130,138,650.72
  5. Step 5: Solve for x
    x = 200,130,138,650.72/465,344.88
  6. Step 6: Final answer
    x = 430,068.42

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1.5x scale

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.