Home / 888,387.12-1,225,970.39-480,489.36

Finding the Fourth Proportional to 888,387.12, 1,225,970.39 and 480,489.36

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Solution

The fourth proportional to 888,387.12, 1,225,970.39 and 480,489.36 is: 663,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,387.12 : 1,225,970.39 = 480,489.36 : x
  2. Step 2: Convert to fraction form
    888,387.12/1,225,970.39 = 480,489.36/x
  3. Step 3: Cross multiply
    888,387.12x = 1,225,970.39 × 480,489.36
  4. Step 4: Simplify right side
    888,387.12x = 589,065,725,667.60
  5. Step 5: Solve for x
    x = 589,065,725,667.60/888,387.12
  6. Step 6: Final answer
    x = 663,073.24

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1.5x scale

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.