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Finding the Fourth Proportional to 403,776.40, 605,664.60 and 377,532.40

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Solution

The fourth proportional to 403,776.40, 605,664.60 and 377,532.40 is: 566,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,776.40 : 605,664.60 = 377,532.40 : x
  2. Step 2: Convert to fraction form
    403,776.40/605,664.60 = 377,532.40/x
  3. Step 3: Cross multiply
    403,776.40x = 605,664.60 × 377,532.40
  4. Step 4: Simplify right side
    403,776.40x = 228,658,010,033.04
  5. Step 5: Solve for x
    x = 228,658,010,033.04/403,776.40
  6. Step 6: Final answer
    x = 566,298.60

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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.