Home / 857,925.42-1,286,898.04-258,891.77

Finding the Fourth Proportional to 857,925.42, 1,286,898.04 and 258,891.77

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Solution

The fourth proportional to 857,925.42, 1,286,898.04 and 258,891.77 is: 388,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,925.42 : 1,286,898.04 = 258,891.77 : x
  2. Step 2: Convert to fraction form
    857,925.42/1,286,898.04 = 258,891.77/x
  3. Step 3: Cross multiply
    857,925.42x = 1,286,898.04 × 258,891.77
  4. Step 4: Simplify right side
    857,925.42x = 333,167,311,385.13
  5. Step 5: Solve for x
    x = 333,167,311,385.13/857,925.42
  6. Step 6: Final answer
    x = 388,340.65

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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.