Home / 857,277.15-1,286,686.65-458,259

Finding the Fourth Proportional to 857,277.15, 1,286,686.65 and 458,259

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Solution

The fourth proportional to 857,277.15, 1,286,686.65 and 458,259 is: 687,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,277.15 : 1,286,686.65 = 458,259 : x
  2. Step 2: Convert to fraction form
    857,277.15/1,286,686.65 = 458,259/x
  3. Step 3: Cross multiply
    857,277.15x = 1,286,686.65 × 458,259
  4. Step 4: Simplify right side
    857,277.15x = 589,635,737,542.35
  5. Step 5: Solve for x
    x = 589,635,737,542.35/857,277.15
  6. Step 6: Final answer
    x = 687,800.60

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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.