Home / 827,145.20-1,240,948.20-406,434.80

Finding the Fourth Proportional to 827,145.20, 1,240,948.20 and 406,434.80

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Solution

The fourth proportional to 827,145.20, 1,240,948.20 and 406,434.80 is: 609,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,145.20 : 1,240,948.20 = 406,434.80 : x
  2. Step 2: Convert to fraction form
    827,145.20/1,240,948.20 = 406,434.80/x
  3. Step 3: Cross multiply
    827,145.20x = 1,240,948.20 × 406,434.80
  4. Step 4: Simplify right side
    827,145.20x = 504,364,533,477.36
  5. Step 5: Solve for x
    x = 504,364,533,477.36/827,145.20
  6. Step 6: Final answer
    x = 609,765.41

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Double scale
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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.