Home / 858,135.60-1,286,056.98-452,500.56

Finding the Fourth Proportional to 858,135.60, 1,286,056.98 and 452,500.56

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Solution

The fourth proportional to 858,135.60, 1,286,056.98 and 452,500.56 is: 678,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,135.60 : 1,286,056.98 = 452,500.56 : x
  2. Step 2: Convert to fraction form
    858,135.60/1,286,056.98 = 452,500.56/x
  3. Step 3: Cross multiply
    858,135.60x = 1,286,056.98 × 452,500.56
  4. Step 4: Simplify right side
    858,135.60x = 581,941,503,641.91
  5. Step 5: Solve for x
    x = 581,941,503,641.91/858,135.60
  6. Step 6: Final answer
    x = 678,146.33

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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.