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Finding the Fourth Proportional to 403,771.80, 606,240.90 and 304,627.80

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Solution

The fourth proportional to 403,771.80, 606,240.90 and 304,627.80 is: 457,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,771.80 : 606,240.90 = 304,627.80 : x
  2. Step 2: Convert to fraction form
    403,771.80/606,240.90 = 304,627.80/x
  3. Step 3: Cross multiply
    403,771.80x = 606,240.90 × 304,627.80
  4. Step 4: Simplify right side
    403,771.80x = 184,677,831,637.02
  5. Step 5: Solve for x
    x = 184,677,831,637.02/403,771.80
  6. Step 6: Final answer
    x = 457,381.70

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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.