Home / 461,100.15-690,905.03-260,824.95

Finding the Fourth Proportional to 461,100.15, 690,905.03 and 260,824.95

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Solution

The fourth proportional to 461,100.15, 690,905.03 and 260,824.95 is: 390,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,100.15 : 690,905.03 = 260,824.95 : x
  2. Step 2: Convert to fraction form
    461,100.15/690,905.03 = 260,824.95/x
  3. Step 3: Cross multiply
    461,100.15x = 690,905.03 × 260,824.95
  4. Step 4: Simplify right side
    461,100.15x = 180,205,268,600.37
  5. Step 5: Solve for x
    x = 180,205,268,600.37/461,100.15
  6. Step 6: Final answer
    x = 390,815.90

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1.5x scale

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.