Home / 637,102.29-879,155.85-378,965.01

Finding the Fourth Proportional to 637,102.29, 879,155.85 and 378,965.01

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Solution

The fourth proportional to 637,102.29, 879,155.85 and 378,965.01 is: 522,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,102.29 : 879,155.85 = 378,965.01 : x
  2. Step 2: Convert to fraction form
    637,102.29/879,155.85 = 378,965.01/x
  3. Step 3: Cross multiply
    637,102.29x = 879,155.85 × 378,965.01
  4. Step 4: Simplify right side
    637,102.29x = 333,169,305,486.81
  5. Step 5: Solve for x
    x = 333,169,305,486.81/637,102.29
  6. Step 6: Final answer
    x = 522,944.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.