Home / 695,145.60-1,042,718.40-221,865.60

Finding the Fourth Proportional to 695,145.60, 1,042,718.40 and 221,865.60

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Solution

The fourth proportional to 695,145.60, 1,042,718.40 and 221,865.60 is: 332,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,145.60 : 1,042,718.40 = 221,865.60 : x
  2. Step 2: Convert to fraction form
    695,145.60/1,042,718.40 = 221,865.60/x
  3. Step 3: Cross multiply
    695,145.60x = 1,042,718.40 × 221,865.60
  4. Step 4: Simplify right side
    695,145.60x = 231,343,343,447.04
  5. Step 5: Solve for x
    x = 231,343,343,447.04/695,145.60
  6. Step 6: Final answer
    x = 332,798.40

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Double scale
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Similar ratio
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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.