Home / 1,228,931.20-1,843,396.80-1,018,979.20

Finding the Fourth Proportional to 1,228,931.20, 1,843,396.80 and 1,018,979.20

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Solution

The fourth proportional to 1,228,931.20, 1,843,396.80 and 1,018,979.20 is: 1,528,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,931.20 : 1,843,396.80 = 1,018,979.20 : x
  2. Step 2: Convert to fraction form
    1,228,931.20/1,843,396.80 = 1,018,979.20/x
  3. Step 3: Cross multiply
    1,228,931.20x = 1,843,396.80 × 1,018,979.20
  4. Step 4: Simplify right side
    1,228,931.20x = 1,878,382,996,546.56
  5. Step 5: Solve for x
    x = 1,878,382,996,546.56/1,228,931.20
  6. Step 6: Final answer
    x = 1,528,468.80

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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.