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Finding the Fourth Proportional to 403,009.40, 604,514.10 and 340,801.40

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Solution

The fourth proportional to 403,009.40, 604,514.10 and 340,801.40 is: 511,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,009.40 : 604,514.10 = 340,801.40 : x
  2. Step 2: Convert to fraction form
    403,009.40/604,514.10 = 340,801.40/x
  3. Step 3: Cross multiply
    403,009.40x = 604,514.10 × 340,801.40
  4. Step 4: Simplify right side
    403,009.40x = 206,019,251,599.74
  5. Step 5: Solve for x
    x = 206,019,251,599.74/403,009.40
  6. Step 6: Final answer
    x = 511,202.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.