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Finding the Fourth Proportional to 628,846.26, 867,807.96 and 342,366.36

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Solution

The fourth proportional to 628,846.26, 867,807.96 and 342,366.36 is: 472,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,846.26 : 867,807.96 = 342,366.36 : x
  2. Step 2: Convert to fraction form
    628,846.26/867,807.96 = 342,366.36/x
  3. Step 3: Cross multiply
    628,846.26x = 867,807.96 × 342,366.36
  4. Step 4: Simplify right side
    628,846.26x = 297,108,252,444.23
  5. Step 5: Solve for x
    x = 297,108,252,444.23/628,846.26
  6. Step 6: Final answer
    x = 472,465.64

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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.