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Finding the Fourth Proportional to 3,984,368.40, 5,976,552.60 and 992,552.40

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Solution

The fourth proportional to 3,984,368.40, 5,976,552.60 and 992,552.40 is: 1,488,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984,368.40 : 5,976,552.60 = 992,552.40 : x
  2. Step 2: Convert to fraction form
    3,984,368.40/5,976,552.60 = 992,552.40/x
  3. Step 3: Cross multiply
    3,984,368.40x = 5,976,552.60 × 992,552.40
  4. Step 4: Simplify right side
    3,984,368.40x = 5,932,041,626,856.24
  5. Step 5: Solve for x
    x = 5,932,041,626,856.24/3,984,368.40
  6. Step 6: Final answer
    x = 1,488,828.60

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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.