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Finding the Fourth Proportional to 802,149.60, 1,203,224.40 and 644,685.60

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Solution

The fourth proportional to 802,149.60, 1,203,224.40 and 644,685.60 is: 967,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,149.60 : 1,203,224.40 = 644,685.60 : x
  2. Step 2: Convert to fraction form
    802,149.60/1,203,224.40 = 644,685.60/x
  3. Step 3: Cross multiply
    802,149.60x = 1,203,224.40 × 644,685.60
  4. Step 4: Simplify right side
    802,149.60x = 775,701,444,248.64
  5. Step 5: Solve for x
    x = 775,701,444,248.64/802,149.60
  6. Step 6: Final answer
    x = 967,028.40

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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.