Home / 691,386.57-1,037,112.66-335,977.20

Finding the Fourth Proportional to 691,386.57, 1,037,112.66 and 335,977.20

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Solution

The fourth proportional to 691,386.57, 1,037,112.66 and 335,977.20 is: 503,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,386.57 : 1,037,112.66 = 335,977.20 : x
  2. Step 2: Convert to fraction form
    691,386.57/1,037,112.66 = 335,977.20/x
  3. Step 3: Cross multiply
    691,386.57x = 1,037,112.66 × 335,977.20
  4. Step 4: Simplify right side
    691,386.57x = 348,446,207,591.35
  5. Step 5: Solve for x
    x = 348,446,207,591.35/691,386.57
  6. Step 6: Final answer
    x = 503,981.74

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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.