Home / 698,722.60-1,047,176.70-323,948.20

Finding the Fourth Proportional to 698,722.60, 1,047,176.70 and 323,948.20

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Solution

The fourth proportional to 698,722.60, 1,047,176.70 and 323,948.20 is: 485,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,722.60 : 1,047,176.70 = 323,948.20 : x
  2. Step 2: Convert to fraction form
    698,722.60/1,047,176.70 = 323,948.20/x
  3. Step 3: Cross multiply
    698,722.60x = 1,047,176.70 × 323,948.20
  4. Step 4: Simplify right side
    698,722.60x = 339,231,007,046.94
  5. Step 5: Solve for x
    x = 339,231,007,046.94/698,722.60
  6. Step 6: Final answer
    x = 485,501.70

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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.