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Finding the Fourth Proportional to 518,758.62, 778,488.45 and 181,802.67

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Solution

The fourth proportional to 518,758.62, 778,488.45 and 181,802.67 is: 272,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,758.62 : 778,488.45 = 181,802.67 : x
  2. Step 2: Convert to fraction form
    518,758.62/778,488.45 = 181,802.67/x
  3. Step 3: Cross multiply
    518,758.62x = 778,488.45 × 181,802.67
  4. Step 4: Simplify right side
    518,758.62x = 141,531,278,774.16
  5. Step 5: Solve for x
    x = 141,531,278,774.16/518,758.62
  6. Step 6: Final answer
    x = 272,826.85

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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.