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Finding the Fourth Proportional to 2,990,724.84, 4,486,794.39 and 968,965.47

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Solution

The fourth proportional to 2,990,724.84, 4,486,794.39 and 968,965.47 is: 1,453,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,724.84 : 4,486,794.39 = 968,965.47 : x
  2. Step 2: Convert to fraction form
    2,990,724.84/4,486,794.39 = 968,965.47/x
  3. Step 3: Cross multiply
    2,990,724.84x = 4,486,794.39 × 968,965.47
  4. Step 4: Simplify right side
    2,990,724.84x = 4,347,548,834,899.71
  5. Step 5: Solve for x
    x = 4,347,548,834,899.71/2,990,724.84
  6. Step 6: Final answer
    x = 1,453,677.31

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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.