Home / 857,555.36-1,286,527.11-288,921.01

Finding the Fourth Proportional to 857,555.36, 1,286,527.11 and 288,921.01

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Solution

The fourth proportional to 857,555.36, 1,286,527.11 and 288,921.01 is: 433,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,555.36 : 1,286,527.11 = 288,921.01 : x
  2. Step 2: Convert to fraction form
    857,555.36/1,286,527.11 = 288,921.01/x
  3. Step 3: Cross multiply
    857,555.36x = 1,286,527.11 × 288,921.01
  4. Step 4: Simplify right side
    857,555.36x = 371,704,712,013.58
  5. Step 5: Solve for x
    x = 371,704,712,013.58/857,555.36
  6. Step 6: Final answer
    x = 433,446.90

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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.