Home / 913,401.20-1,370,101.80-441,009.20

Finding the Fourth Proportional to 913,401.20, 1,370,101.80 and 441,009.20

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Solution

The fourth proportional to 913,401.20, 1,370,101.80 and 441,009.20 is: 661,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,401.20 : 1,370,101.80 = 441,009.20 : x
  2. Step 2: Convert to fraction form
    913,401.20/1,370,101.80 = 441,009.20/x
  3. Step 3: Cross multiply
    913,401.20x = 1,370,101.80 × 441,009.20
  4. Step 4: Simplify right side
    913,401.20x = 604,227,498,736.56
  5. Step 5: Solve for x
    x = 604,227,498,736.56/913,401.20
  6. Step 6: Final answer
    x = 661,513.80

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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.