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Finding the Fourth Proportional to 628,841.44, 867,772.60 and 342,360.92

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Solution

The fourth proportional to 628,841.44, 867,772.60 and 342,360.92 is: 472,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,841.44 : 867,772.60 = 342,360.92 : x
  2. Step 2: Convert to fraction form
    628,841.44/867,772.60 = 342,360.92/x
  3. Step 3: Cross multiply
    628,841.44x = 867,772.60 × 342,360.92
  4. Step 4: Simplify right side
    628,841.44x = 297,091,425,686.79
  5. Step 5: Solve for x
    x = 297,091,425,686.79/628,841.44
  6. Step 6: Final answer
    x = 472,442.51

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1.5x scale

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.