Home / 404,899.92-558,400.32-261,509.04

Finding the Fourth Proportional to 404,899.92, 558,400.32 and 261,509.04

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Solution

The fourth proportional to 404,899.92, 558,400.32 and 261,509.04 is: 360,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,899.92 : 558,400.32 = 261,509.04 : x
  2. Step 2: Convert to fraction form
    404,899.92/558,400.32 = 261,509.04/x
  3. Step 3: Cross multiply
    404,899.92x = 558,400.32 × 261,509.04
  4. Step 4: Simplify right side
    404,899.92x = 146,026,731,618.89
  5. Step 5: Solve for x
    x = 146,026,731,618.89/404,899.92
  6. Step 6: Final answer
    x = 360,648.95

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1.5x scale

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.