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Finding the Fourth Proportional to 2,490,840, 3,736,263.60 and 693,728.64

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Solution

The fourth proportional to 2,490,840, 3,736,263.60 and 693,728.64 is: 1,040,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490,840 : 3,736,263.60 = 693,728.64 : x
  2. Step 2: Convert to fraction form
    2,490,840/3,736,263.60 = 693,728.64/x
  3. Step 3: Cross multiply
    2,490,840x = 3,736,263.60 × 693,728.64
  4. Step 4: Simplify right side
    2,490,840x = 2,591,953,065,909.50
  5. Step 5: Solve for x
    x = 2,591,953,065,909.50/2,490,840
  6. Step 6: Final answer
    x = 1,040,593.96

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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.