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Finding the Fourth Proportional to 2,628,009.70, 3,942,014.55 and 734,748.10

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Solution

The fourth proportional to 2,628,009.70, 3,942,014.55 and 734,748.10 is: 1,102,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,009.70 : 3,942,014.55 = 734,748.10 : x
  2. Step 2: Convert to fraction form
    2,628,009.70/3,942,014.55 = 734,748.10/x
  3. Step 3: Cross multiply
    2,628,009.70x = 3,942,014.55 × 734,748.10
  4. Step 4: Simplify right side
    2,628,009.70x = 2,896,387,700,784.86
  5. Step 5: Solve for x
    x = 2,896,387,700,784.86/2,628,009.70
  6. Step 6: Final answer
    x = 1,102,122.15

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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.