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Finding the Fourth Proportional to 888,085, 1,225,586.46 and 485,677

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Solution

The fourth proportional to 888,085, 1,225,586.46 and 485,677 is: 670,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,085 : 1,225,586.46 = 485,677 : x
  2. Step 2: Convert to fraction form
    888,085/1,225,586.46 = 485,677/x
  3. Step 3: Cross multiply
    888,085x = 1,225,586.46 × 485,677
  4. Step 4: Simplify right side
    888,085x = 595,239,155,133.42
  5. Step 5: Solve for x
    x = 595,239,155,133.42/888,085
  6. Step 6: Final answer
    x = 670,250.21

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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.