Home / 693,736.40-1,040,345.40-272,925.20

Finding the Fourth Proportional to 693,736.40, 1,040,345.40 and 272,925.20

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Solution

The fourth proportional to 693,736.40, 1,040,345.40 and 272,925.20 is: 409,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,736.40 : 1,040,345.40 = 272,925.20 : x
  2. Step 2: Convert to fraction form
    693,736.40/1,040,345.40 = 272,925.20/x
  3. Step 3: Cross multiply
    693,736.40x = 1,040,345.40 × 272,925.20
  4. Step 4: Simplify right side
    693,736.40x = 283,936,476,364.08
  5. Step 5: Solve for x
    x = 283,936,476,364.08/693,736.40
  6. Step 6: Final answer
    x = 409,285.83

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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.