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Finding the Fourth Proportional to 888,510.54, 1,226,172.69 and 486,102.54

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Solution

The fourth proportional to 888,510.54, 1,226,172.69 and 486,102.54 is: 670,836.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,510.54 : 1,226,172.69 = 486,102.54 : x
  2. Step 2: Convert to fraction form
    888,510.54/1,226,172.69 = 486,102.54/x
  3. Step 3: Cross multiply
    888,510.54x = 1,226,172.69 × 486,102.54
  4. Step 4: Simplify right side
    888,510.54x = 596,045,659,087.63
  5. Step 5: Solve for x
    x = 596,045,659,087.63/888,510.54
  6. Step 6: Final answer
    x = 670,836.90

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1.5x scale

Why These Related Problems?

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