Home / 425,785.06-637,640.08-281,603.04

Finding the Fourth Proportional to 425,785.06, 637,640.08 and 281,603.04

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Solution

The fourth proportional to 425,785.06, 637,640.08 and 281,603.04 is: 421,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,785.06 : 637,640.08 = 281,603.04 : x
  2. Step 2: Convert to fraction form
    425,785.06/637,640.08 = 281,603.04/x
  3. Step 3: Cross multiply
    425,785.06x = 637,640.08 × 281,603.04
  4. Step 4: Simplify right side
    425,785.06x = 179,561,381,858.69
  5. Step 5: Solve for x
    x = 179,561,381,858.69/425,785.06
  6. Step 6: Final answer
    x = 421,718.38

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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.