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Finding the Fourth Proportional to 628,351.71, 867,099.58 and 341,871.93

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Solution

The fourth proportional to 628,351.71, 867,099.58 and 341,871.93 is: 471,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,351.71 : 867,099.58 = 341,871.93 : x
  2. Step 2: Convert to fraction form
    628,351.71/867,099.58 = 341,871.93/x
  3. Step 3: Cross multiply
    628,351.71x = 867,099.58 × 341,871.93
  4. Step 4: Simplify right side
    628,351.71x = 296,437,000,871.93
  5. Step 5: Solve for x
    x = 296,437,000,871.93/628,351.71
  6. Step 6: Final answer
    x = 471,769.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.