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Finding the Fourth Proportional to 656,987.40, 985,481.10 and 376,273.80

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Solution

The fourth proportional to 656,987.40, 985,481.10 and 376,273.80 is: 564,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,987.40 : 985,481.10 = 376,273.80 : x
  2. Step 2: Convert to fraction form
    656,987.40/985,481.10 = 376,273.80/x
  3. Step 3: Cross multiply
    656,987.40x = 985,481.10 × 376,273.80
  4. Step 4: Simplify right side
    656,987.40x = 370,810,718,325.18
  5. Step 5: Solve for x
    x = 370,810,718,325.18/656,987.40
  6. Step 6: Final answer
    x = 564,410.70

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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.