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Finding the Fourth Proportional to 404,534.40, 605,635.20 and 247,070.40

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Solution

The fourth proportional to 404,534.40, 605,635.20 and 247,070.40 is: 369,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,534.40 : 605,635.20 = 247,070.40 : x
  2. Step 2: Convert to fraction form
    404,534.40/605,635.20 = 247,070.40/x
  3. Step 3: Cross multiply
    404,534.40x = 605,635.20 × 247,070.40
  4. Step 4: Simplify right side
    404,534.40x = 149,634,531,118.08
  5. Step 5: Solve for x
    x = 149,634,531,118.08/404,534.40
  6. Step 6: Final answer
    x = 369,893.22

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1.5x scale

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.