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Finding the Fourth Proportional to 403,410.80, 604,079.40 and 297,657.20

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Solution

The fourth proportional to 403,410.80, 604,079.40 and 297,657.20 is: 445,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,410.80 : 604,079.40 = 297,657.20 : x
  2. Step 2: Convert to fraction form
    403,410.80/604,079.40 = 297,657.20/x
  3. Step 3: Cross multiply
    403,410.80x = 604,079.40 × 297,657.20
  4. Step 4: Simplify right side
    403,410.80x = 179,808,582,781.68
  5. Step 5: Solve for x
    x = 179,808,582,781.68/403,410.80
  6. Step 6: Final answer
    x = 445,720.80

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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.