Home / 1,283,407.10-1,925,110.65-1,214,978.30

Finding the Fourth Proportional to 1,283,407.10, 1,925,110.65 and 1,214,978.30

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Solution

The fourth proportional to 1,283,407.10, 1,925,110.65 and 1,214,978.30 is: 1,822,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,407.10 : 1,925,110.65 = 1,214,978.30 : x
  2. Step 2: Convert to fraction form
    1,283,407.10/1,925,110.65 = 1,214,978.30/x
  3. Step 3: Cross multiply
    1,283,407.10x = 1,925,110.65 × 1,214,978.30
  4. Step 4: Simplify right side
    1,283,407.10x = 2,338,967,664,848.90
  5. Step 5: Solve for x
    x = 2,338,967,664,848.90/1,283,407.10
  6. Step 6: Final answer
    x = 1,822,467.45

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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.