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Finding the Fourth Proportional to 651,162.24, 898,678.08 and 396,662.40

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Solution

The fourth proportional to 651,162.24, 898,678.08 and 396,662.40 is: 547,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,162.24 : 898,678.08 = 396,662.40 : x
  2. Step 2: Convert to fraction form
    651,162.24/898,678.08 = 396,662.40/x
  3. Step 3: Cross multiply
    651,162.24x = 898,678.08 × 396,662.40
  4. Step 4: Simplify right side
    651,162.24x = 356,471,804,040.19
  5. Step 5: Solve for x
    x = 356,471,804,040.19/651,162.24
  6. Step 6: Final answer
    x = 547,439.30

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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.