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Finding the Fourth Proportional to 615,217.10, 923,809.80 and 465,626.30

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Solution

The fourth proportional to 615,217.10, 923,809.80 and 465,626.30 is: 699,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,217.10 : 923,809.80 = 465,626.30 : x
  2. Step 2: Convert to fraction form
    615,217.10/923,809.80 = 465,626.30/x
  3. Step 3: Cross multiply
    615,217.10x = 923,809.80 × 465,626.30
  4. Step 4: Simplify right side
    615,217.10x = 430,150,139,077.74
  5. Step 5: Solve for x
    x = 430,150,139,077.74/615,217.10
  6. Step 6: Final answer
    x = 699,184.30

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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.