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Finding the Fourth Proportional to 438,404.57, 604,826.16 and 254,611.85

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Solution

The fourth proportional to 438,404.57, 604,826.16 and 254,611.85 is: 351,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,404.57 : 604,826.16 = 254,611.85 : x
  2. Step 2: Convert to fraction form
    438,404.57/604,826.16 = 254,611.85/x
  3. Step 3: Cross multiply
    438,404.57x = 604,826.16 × 254,611.85
  4. Step 4: Simplify right side
    438,404.57x = 153,995,904,501.87
  5. Step 5: Solve for x
    x = 153,995,904,501.87/438,404.57
  6. Step 6: Final answer
    x = 351,264.37

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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.