Home / 857,788.53-1,286,308.95-289,063.63

Finding the Fourth Proportional to 857,788.53, 1,286,308.95 and 289,063.63

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Solution

The fourth proportional to 857,788.53, 1,286,308.95 and 289,063.63 is: 433,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,788.53 : 1,286,308.95 = 289,063.63 : x
  2. Step 2: Convert to fraction form
    857,788.53/1,286,308.95 = 289,063.63/x
  3. Step 3: Cross multiply
    857,788.53x = 1,286,308.95 × 289,063.63
  4. Step 4: Simplify right side
    857,788.53x = 371,825,134,388.49
  5. Step 5: Solve for x
    x = 371,825,134,388.49/857,788.53
  6. Step 6: Final answer
    x = 433,469.46

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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.