Home / 858,139.60-1,286,062.98-452,504.56

Finding the Fourth Proportional to 858,139.60, 1,286,062.98 and 452,504.56

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Solution

The fourth proportional to 858,139.60, 1,286,062.98 and 452,504.56 is: 678,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,139.60 : 1,286,062.98 = 452,504.56 : x
  2. Step 2: Convert to fraction form
    858,139.60/1,286,062.98 = 452,504.56/x
  3. Step 3: Cross multiply
    858,139.60x = 1,286,062.98 × 452,504.56
  4. Step 4: Simplify right side
    858,139.60x = 581,949,362,897.19
  5. Step 5: Solve for x
    x = 581,949,362,897.19/858,139.60
  6. Step 6: Final answer
    x = 678,152.32

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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.