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Finding the Fourth Proportional to 604,993.44, 905,904.72 and 426,534.24

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Solution

The fourth proportional to 604,993.44, 905,904.72 and 426,534.24 is: 638,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,993.44 : 905,904.72 = 426,534.24 : x
  2. Step 2: Convert to fraction form
    604,993.44/905,904.72 = 426,534.24/x
  3. Step 3: Cross multiply
    604,993.44x = 905,904.72 × 426,534.24
  4. Step 4: Simplify right side
    604,993.44x = 386,399,381,257.61
  5. Step 5: Solve for x
    x = 386,399,381,257.61/604,993.44
  6. Step 6: Final answer
    x = 638,683.59

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1.5x scale

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.