Home / 691,917.78-1,037,870.50-218,603.13

Finding the Fourth Proportional to 691,917.78, 1,037,870.50 and 218,603.13

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Solution

The fourth proportional to 691,917.78, 1,037,870.50 and 218,603.13 is: 327,902.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,917.78 : 1,037,870.50 = 218,603.13 : x
  2. Step 2: Convert to fraction form
    691,917.78/1,037,870.50 = 218,603.13/x
  3. Step 3: Cross multiply
    691,917.78x = 1,037,870.50 × 218,603.13
  4. Step 4: Simplify right side
    691,917.78x = 226,881,739,834.67
  5. Step 5: Solve for x
    x = 226,881,739,834.67/691,917.78
  6. Step 6: Final answer
    x = 327,902.75

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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.