Home / 878,954.42-1,318,469.90-430,053.23

Finding the Fourth Proportional to 878,954.42, 1,318,469.90 and 430,053.23

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Solution

The fourth proportional to 878,954.42, 1,318,469.90 and 430,053.23 is: 645,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,954.42 : 1,318,469.90 = 430,053.23 : x
  2. Step 2: Convert to fraction form
    878,954.42/1,318,469.90 = 430,053.23/x
  3. Step 3: Cross multiply
    878,954.42x = 1,318,469.90 × 430,053.23
  4. Step 4: Simplify right side
    878,954.42x = 567,012,239,152.78
  5. Step 5: Solve for x
    x = 567,012,239,152.78/878,954.42
  6. Step 6: Final answer
    x = 645,098.57

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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.