Home / 857,787.53-1,286,307.45-289,062.63

Finding the Fourth Proportional to 857,787.53, 1,286,307.45 and 289,062.63

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Solution

The fourth proportional to 857,787.53, 1,286,307.45 and 289,062.63 is: 433,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,787.53 : 1,286,307.45 = 289,062.63 : x
  2. Step 2: Convert to fraction form
    857,787.53/1,286,307.45 = 289,062.63/x
  3. Step 3: Cross multiply
    857,787.53x = 1,286,307.45 × 289,062.63
  4. Step 4: Simplify right side
    857,787.53x = 371,823,414,485.59
  5. Step 5: Solve for x
    x = 371,823,414,485.59/857,787.53
  6. Step 6: Final answer
    x = 433,467.97

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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.