Home / 827,150.40-1,240,725.60-472,200.30

Finding the Fourth Proportional to 827,150.40, 1,240,725.60 and 472,200.30

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Solution

The fourth proportional to 827,150.40, 1,240,725.60 and 472,200.30 is: 708,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,150.40 : 1,240,725.60 = 472,200.30 : x
  2. Step 2: Convert to fraction form
    827,150.40/1,240,725.60 = 472,200.30/x
  3. Step 3: Cross multiply
    827,150.40x = 1,240,725.60 × 472,200.30
  4. Step 4: Simplify right side
    827,150.40x = 585,871,000,537.68
  5. Step 5: Solve for x
    x = 585,871,000,537.68/827,150.40
  6. Step 6: Final answer
    x = 708,300.45

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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.