Home / 857,513.52-1,286,324.01-288,847.89

Finding the Fourth Proportional to 857,513.52, 1,286,324.01 and 288,847.89

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Solution

The fourth proportional to 857,513.52, 1,286,324.01 and 288,847.89 is: 433,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,513.52 : 1,286,324.01 = 288,847.89 : x
  2. Step 2: Convert to fraction form
    857,513.52/1,286,324.01 = 288,847.89/x
  3. Step 3: Cross multiply
    857,513.52x = 1,286,324.01 × 288,847.89
  4. Step 4: Simplify right side
    857,513.52x = 371,551,976,144.84
  5. Step 5: Solve for x
    x = 371,551,976,144.84/857,513.52
  6. Step 6: Final answer
    x = 433,289.93

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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.