Home / 1,290,025.92-1,780,083.48-766,655.04

Finding the Fourth Proportional to 1,290,025.92, 1,780,083.48 and 766,655.04

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Solution

The fourth proportional to 1,290,025.92, 1,780,083.48 and 766,655.04 is: 1,057,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,025.92 : 1,780,083.48 = 766,655.04 : x
  2. Step 2: Convert to fraction form
    1,290,025.92/1,780,083.48 = 766,655.04/x
  3. Step 3: Cross multiply
    1,290,025.92x = 1,780,083.48 × 766,655.04
  4. Step 4: Simplify right side
    1,290,025.92x = 1,364,709,971,562.74
  5. Step 5: Solve for x
    x = 1,364,709,971,562.74/1,290,025.92
  6. Step 6: Final answer
    x = 1,057,893.45

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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.