Home / 857,630.63-1,286,237.88-288,864.83

Finding the Fourth Proportional to 857,630.63, 1,286,237.88 and 288,864.83

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Solution

The fourth proportional to 857,630.63, 1,286,237.88 and 288,864.83 is: 433,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,630.63 : 1,286,237.88 = 288,864.83 : x
  2. Step 2: Convert to fraction form
    857,630.63/1,286,237.88 = 288,864.83/x
  3. Step 3: Cross multiply
    857,630.63x = 1,286,237.88 × 288,864.83
  4. Step 4: Simplify right side
    857,630.63x = 371,548,889,761.36
  5. Step 5: Solve for x
    x = 371,548,889,761.36/857,630.63
  6. Step 6: Final answer
    x = 433,227.17

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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.