Home / 1,286,588.01-1,929,895.84-388,037.53

Finding the Fourth Proportional to 1,286,588.01, 1,929,895.84 and 388,037.53

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Solution

The fourth proportional to 1,286,588.01, 1,929,895.84 and 388,037.53 is: 582,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,588.01 : 1,929,895.84 = 388,037.53 : x
  2. Step 2: Convert to fraction form
    1,286,588.01/1,929,895.84 = 388,037.53/x
  3. Step 3: Cross multiply
    1,286,588.01x = 1,929,895.84 × 388,037.53
  4. Step 4: Simplify right side
    1,286,588.01x = 748,872,017,269.85
  5. Step 5: Solve for x
    x = 748,872,017,269.85/1,286,588.01
  6. Step 6: Final answer
    x = 582,060.47

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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.