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Finding the Fourth Proportional to 403,329.20, 604,993.80 and 262,324.40

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Solution

The fourth proportional to 403,329.20, 604,993.80 and 262,324.40 is: 393,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,329.20 : 604,993.80 = 262,324.40 : x
  2. Step 2: Convert to fraction form
    403,329.20/604,993.80 = 262,324.40/x
  3. Step 3: Cross multiply
    403,329.20x = 604,993.80 × 262,324.40
  4. Step 4: Simplify right side
    403,329.20x = 158,704,635,588.72
  5. Step 5: Solve for x
    x = 158,704,635,588.72/403,329.20
  6. Step 6: Final answer
    x = 393,486.60

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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.