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Finding the Fourth Proportional to 403,314.20, 604,971.30 and 383,631.20

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Solution

The fourth proportional to 403,314.20, 604,971.30 and 383,631.20 is: 575,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,314.20 : 604,971.30 = 383,631.20 : x
  2. Step 2: Convert to fraction form
    403,314.20/604,971.30 = 383,631.20/x
  3. Step 3: Cross multiply
    403,314.20x = 604,971.30 × 383,631.20
  4. Step 4: Simplify right side
    403,314.20x = 232,085,865,784.56
  5. Step 5: Solve for x
    x = 232,085,865,784.56/403,314.20
  6. Step 6: Final answer
    x = 575,446.80

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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.