Home / 1,370,260.32-1,890,831.16-818,866.64

Finding the Fourth Proportional to 1,370,260.32, 1,890,831.16 and 818,866.64

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Solution

The fourth proportional to 1,370,260.32, 1,890,831.16 and 818,866.64 is: 1,129,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,260.32 : 1,890,831.16 = 818,866.64 : x
  2. Step 2: Convert to fraction form
    1,370,260.32/1,890,831.16 = 818,866.64/x
  3. Step 3: Cross multiply
    1,370,260.32x = 1,890,831.16 × 818,866.64
  4. Step 4: Simplify right side
    1,370,260.32x = 1,548,338,558,796.50
  5. Step 5: Solve for x
    x = 1,548,338,558,796.50/1,370,260.32
  6. Step 6: Final answer
    x = 1,129,959.42

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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.