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Finding the Fourth Proportional to 518,920.32, 778,474.56 and 234,744.72

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Solution

The fourth proportional to 518,920.32, 778,474.56 and 234,744.72 is: 352,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,920.32 : 778,474.56 = 234,744.72 : x
  2. Step 2: Convert to fraction form
    518,920.32/778,474.56 = 234,744.72/x
  3. Step 3: Cross multiply
    518,920.32x = 778,474.56 × 234,744.72
  4. Step 4: Simplify right side
    518,920.32x = 182,742,792,614.32
  5. Step 5: Solve for x
    x = 182,742,792,614.32/518,920.32
  6. Step 6: Final answer
    x = 352,159.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.