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Finding the Fourth Proportional to 403,272.40, 604,908.60 and 283,003.60

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Solution

The fourth proportional to 403,272.40, 604,908.60 and 283,003.60 is: 424,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,272.40 : 604,908.60 = 283,003.60 : x
  2. Step 2: Convert to fraction form
    403,272.40/604,908.60 = 283,003.60/x
  3. Step 3: Cross multiply
    403,272.40x = 604,908.60 × 283,003.60
  4. Step 4: Simplify right side
    403,272.40x = 171,191,311,470.96
  5. Step 5: Solve for x
    x = 171,191,311,470.96/403,272.40
  6. Step 6: Final answer
    x = 424,505.40

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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.