Home / 918,125.40-1,286,704.19-918,125.40

Finding the Fourth Proportional to 918,125.40, 1,286,704.19 and 918,125.40

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Solution

The fourth proportional to 918,125.40, 1,286,704.19 and 918,125.40 is: 1,286,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,125.40 : 1,286,704.19 = 918,125.40 : x
  2. Step 2: Convert to fraction form
    918,125.40/1,286,704.19 = 918,125.40/x
  3. Step 3: Cross multiply
    918,125.40x = 1,286,704.19 × 918,125.40
  4. Step 4: Simplify right side
    918,125.40x = 1,181,355,799,125.43
  5. Step 5: Solve for x
    x = 1,181,355,799,125.43/918,125.40
  6. Step 6: Final answer
    x = 1,286,704.19

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.