Home / 1,128,984.32-1,693,009.28-480,285.44

Finding the Fourth Proportional to 1,128,984.32, 1,693,009.28 and 480,285.44

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Solution

The fourth proportional to 1,128,984.32, 1,693,009.28 and 480,285.44 is: 720,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,984.32 : 1,693,009.28 = 480,285.44 : x
  2. Step 2: Convert to fraction form
    1,128,984.32/1,693,009.28 = 480,285.44/x
  3. Step 3: Cross multiply
    1,128,984.32x = 1,693,009.28 × 480,285.44
  4. Step 4: Simplify right side
    1,128,984.32x = 813,127,706,968.88
  5. Step 5: Solve for x
    x = 813,127,706,968.88/1,128,984.32
  6. Step 6: Final answer
    x = 720,229.41

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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.