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Finding the Fourth Proportional to 437,745.60, 604,389.60 and 330,436.80

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Solution

The fourth proportional to 437,745.60, 604,389.60 and 330,436.80 is: 456,229.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,745.60 : 604,389.60 = 330,436.80 : x
  2. Step 2: Convert to fraction form
    437,745.60/604,389.60 = 330,436.80/x
  3. Step 3: Cross multiply
    437,745.60x = 604,389.60 × 330,436.80
  4. Step 4: Simplify right side
    437,745.60x = 199,712,565,377.28
  5. Step 5: Solve for x
    x = 199,712,565,377.28/437,745.60
  6. Step 6: Final answer
    x = 456,229.75

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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.