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Finding the Fourth Proportional to 481,015.60, 721,523.40 and 402,866.80

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Solution

The fourth proportional to 481,015.60, 721,523.40 and 402,866.80 is: 604,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,015.60 : 721,523.40 = 402,866.80 : x
  2. Step 2: Convert to fraction form
    481,015.60/721,523.40 = 402,866.80/x
  3. Step 3: Cross multiply
    481,015.60x = 721,523.40 × 402,866.80
  4. Step 4: Simplify right side
    481,015.60x = 290,677,823,283.12
  5. Step 5: Solve for x
    x = 290,677,823,283.12/481,015.60
  6. Step 6: Final answer
    x = 604,300.20

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Similar ratio
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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.