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Finding the Fourth Proportional to 662,073.92, 992,421.92 and 306,795.77

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Solution

The fourth proportional to 662,073.92, 992,421.92 and 306,795.77 is: 459,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,073.92 : 992,421.92 = 306,795.77 : x
  2. Step 2: Convert to fraction form
    662,073.92/992,421.92 = 306,795.77/x
  3. Step 3: Cross multiply
    662,073.92x = 992,421.92 × 306,795.77
  4. Step 4: Simplify right side
    662,073.92x = 304,470,846,637.74
  5. Step 5: Solve for x
    x = 304,470,846,637.74/662,073.92
  6. Step 6: Final answer
    x = 459,874.40

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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.