Home / 857,785.51-1,286,304.45-289,060.62

Finding the Fourth Proportional to 857,785.51, 1,286,304.45 and 289,060.62

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Solution

The fourth proportional to 857,785.51, 1,286,304.45 and 289,060.62 is: 433,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,785.51 : 1,286,304.45 = 289,060.62 : x
  2. Step 2: Convert to fraction form
    857,785.51/1,286,304.45 = 289,060.62/x
  3. Step 3: Cross multiply
    857,785.51x = 1,286,304.45 × 289,060.62
  4. Step 4: Simplify right side
    857,785.51x = 371,819,961,825.76
  5. Step 5: Solve for x
    x = 371,819,961,825.76/857,785.51
  6. Step 6: Final answer
    x = 433,464.96

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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.