Home / 1,432,600.12-1,977,268.91-821,162.31

Finding the Fourth Proportional to 1,432,600.12, 1,977,268.91 and 821,162.31

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Solution

The fourth proportional to 1,432,600.12, 1,977,268.91 and 821,162.31 is: 1,133,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,600.12 : 1,977,268.91 = 821,162.31 : x
  2. Step 2: Convert to fraction form
    1,432,600.12/1,977,268.91 = 821,162.31/x
  3. Step 3: Cross multiply
    1,432,600.12x = 1,977,268.91 × 821,162.31
  4. Step 4: Simplify right side
    1,432,600.12x = 1,623,658,705,626.78
  5. Step 5: Solve for x
    x = 1,623,658,705,626.78/1,432,600.12
  6. Step 6: Final answer
    x = 1,133,364.91

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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.