Home / 876,429.12-1,315,187.92-561,112.32

Finding the Fourth Proportional to 876,429.12, 1,315,187.92 and 561,112.32

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Solution

The fourth proportional to 876,429.12, 1,315,187.92 and 561,112.32 is: 842,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,429.12 : 1,315,187.92 = 561,112.32 : x
  2. Step 2: Convert to fraction form
    876,429.12/1,315,187.92 = 561,112.32/x
  3. Step 3: Cross multiply
    876,429.12x = 1,315,187.92 × 561,112.32
  4. Step 4: Simplify right side
    876,429.12x = 737,968,145,027.17
  5. Step 5: Solve for x
    x = 737,968,145,027.17/876,429.12
  6. Step 6: Final answer
    x = 842,016.92

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1.5x scale

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.