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Finding the Fourth Proportional to 650,302.16, 897,723.81 and 489,218.67

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Solution

The fourth proportional to 650,302.16, 897,723.81 and 489,218.67 is: 675,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,302.16 : 897,723.81 = 489,218.67 : x
  2. Step 2: Convert to fraction form
    650,302.16/897,723.81 = 489,218.67/x
  3. Step 3: Cross multiply
    650,302.16x = 897,723.81 × 489,218.67
  4. Step 4: Simplify right side
    650,302.16x = 439,183,248,355.53
  5. Step 5: Solve for x
    x = 439,183,248,355.53/650,302.16
  6. Step 6: Final answer
    x = 675,352.60

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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.