Home / 628,626.78-867,505.01-342,148.95

Finding the Fourth Proportional to 628,626.78, 867,505.01 and 342,148.95

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Solution

The fourth proportional to 628,626.78, 867,505.01 and 342,148.95 is: 472,165.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,626.78 : 867,505.01 = 342,148.95 : x
  2. Step 2: Convert to fraction form
    628,626.78/867,505.01 = 342,148.95/x
  3. Step 3: Cross multiply
    628,626.78x = 867,505.01 × 342,148.95
  4. Step 4: Simplify right side
    628,626.78x = 296,815,926,580.50
  5. Step 5: Solve for x
    x = 296,815,926,580.50/628,626.78
  6. Step 6: Final answer
    x = 472,165.58

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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.