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Finding the Fourth Proportional to 788,770.92, 1,088,503.92 and 449,270.76

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Solution

The fourth proportional to 788,770.92, 1,088,503.92 and 449,270.76 is: 619,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,770.92 : 1,088,503.92 = 449,270.76 : x
  2. Step 2: Convert to fraction form
    788,770.92/1,088,503.92 = 449,270.76/x
  3. Step 3: Cross multiply
    788,770.92x = 1,088,503.92 × 449,270.76
  4. Step 4: Simplify right side
    788,770.92x = 489,032,983,401.38
  5. Step 5: Solve for x
    x = 489,032,983,401.38/788,770.92
  6. Step 6: Final answer
    x = 619,993.68

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1.5x scale

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.