Home / 1,280,900.96-1,767,858.36-867,250.16

Finding the Fourth Proportional to 1,280,900.96, 1,767,858.36 and 867,250.16

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Solution

The fourth proportional to 1,280,900.96, 1,767,858.36 and 867,250.16 is: 1,196,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,900.96 : 1,767,858.36 = 867,250.16 : x
  2. Step 2: Convert to fraction form
    1,280,900.96/1,767,858.36 = 867,250.16/x
  3. Step 3: Cross multiply
    1,280,900.96x = 1,767,858.36 × 867,250.16
  4. Step 4: Simplify right side
    1,280,900.96x = 1,533,175,445,567.34
  5. Step 5: Solve for x
    x = 1,533,175,445,567.34/1,280,900.96
  6. Step 6: Final answer
    x = 1,196,950.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.