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Finding the Fourth Proportional to 578,898.10, 798,870.63 and 324,258.40

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Solution

The fourth proportional to 578,898.10, 798,870.63 and 324,258.40 is: 447,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,898.10 : 798,870.63 = 324,258.40 : x
  2. Step 2: Convert to fraction form
    578,898.10/798,870.63 = 324,258.40/x
  3. Step 3: Cross multiply
    578,898.10x = 798,870.63 × 324,258.40
  4. Step 4: Simplify right side
    578,898.10x = 259,040,512,290.79
  5. Step 5: Solve for x
    x = 259,040,512,290.79/578,898.10
  6. Step 6: Final answer
    x = 447,471.69

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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.