Home / 1,335,069.48-2,002,659.48-388,440.18

Finding the Fourth Proportional to 1,335,069.48, 2,002,659.48 and 388,440.18

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Solution

The fourth proportional to 1,335,069.48, 2,002,659.48 and 388,440.18 is: 582,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,069.48 : 2,002,659.48 = 388,440.18 : x
  2. Step 2: Convert to fraction form
    1,335,069.48/2,002,659.48 = 388,440.18/x
  3. Step 3: Cross multiply
    1,335,069.48x = 2,002,659.48 × 388,440.18
  4. Step 4: Simplify right side
    1,335,069.48x = 777,913,408,889.91
  5. Step 5: Solve for x
    x = 777,913,408,889.91/1,335,069.48
  6. Step 6: Final answer
    x = 582,676.35

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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.