Home / 1,120,199.78-1,679,746.71-488,840.42

Finding the Fourth Proportional to 1,120,199.78, 1,679,746.71 and 488,840.42

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Solution

The fourth proportional to 1,120,199.78, 1,679,746.71 and 488,840.42 is: 733,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,199.78 : 1,679,746.71 = 488,840.42 : x
  2. Step 2: Convert to fraction form
    1,120,199.78/1,679,746.71 = 488,840.42/x
  3. Step 3: Cross multiply
    1,120,199.78x = 1,679,746.71 × 488,840.42
  4. Step 4: Simplify right side
    1,120,199.78x = 821,128,087,210.02
  5. Step 5: Solve for x
    x = 821,128,087,210.02/1,120,199.78
  6. Step 6: Final answer
    x = 733,019.33

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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.