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Finding the Fourth Proportional to 774,766.76, 1,068,870.68 and 448,019.39

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Solution

The fourth proportional to 774,766.76, 1,068,870.68 and 448,019.39 is: 618,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,766.76 : 1,068,870.68 = 448,019.39 : x
  2. Step 2: Convert to fraction form
    774,766.76/1,068,870.68 = 448,019.39/x
  3. Step 3: Cross multiply
    774,766.76x = 1,068,870.68 × 448,019.39
  4. Step 4: Simplify right side
    774,766.76x = 478,874,790,042.49
  5. Step 5: Solve for x
    x = 478,874,790,042.49/774,766.76
  6. Step 6: Final answer
    x = 618,088.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.