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Finding the Fourth Proportional to 526,883.60, 787,992.60 and 442,902.80

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Solution

The fourth proportional to 526,883.60, 787,992.60 and 442,902.80 is: 662,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,883.60 : 787,992.60 = 442,902.80 : x
  2. Step 2: Convert to fraction form
    526,883.60/787,992.60 = 442,902.80/x
  3. Step 3: Cross multiply
    526,883.60x = 787,992.60 × 442,902.80
  4. Step 4: Simplify right side
    526,883.60x = 349,004,128,919.28
  5. Step 5: Solve for x
    x = 349,004,128,919.28/526,883.60
  6. Step 6: Final answer
    x = 662,393.23

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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.