Home / 1,286,877.30-1,930,267.41-388,295.07

Finding the Fourth Proportional to 1,286,877.30, 1,930,267.41 and 388,295.07

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Solution

The fourth proportional to 1,286,877.30, 1,930,267.41 and 388,295.07 is: 582,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,877.30 : 1,930,267.41 = 388,295.07 : x
  2. Step 2: Convert to fraction form
    1,286,877.30/1,930,267.41 = 388,295.07/x
  3. Step 3: Cross multiply
    1,286,877.30x = 1,930,267.41 × 388,295.07
  4. Step 4: Simplify right side
    1,286,877.30x = 749,513,319,084.67
  5. Step 5: Solve for x
    x = 749,513,319,084.67/1,286,877.30
  6. Step 6: Final answer
    x = 582,427.96

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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.