Home / 691,448.79-1,037,325.52-211,680.22

Finding the Fourth Proportional to 691,448.79, 1,037,325.52 and 211,680.22

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Solution

The fourth proportional to 691,448.79, 1,037,325.52 and 211,680.22 is: 317,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,448.79 : 1,037,325.52 = 211,680.22 : x
  2. Step 2: Convert to fraction form
    691,448.79/1,037,325.52 = 211,680.22/x
  3. Step 3: Cross multiply
    691,448.79x = 1,037,325.52 × 211,680.22
  4. Step 4: Simplify right side
    691,448.79x = 219,581,293,901.49
  5. Step 5: Solve for x
    x = 219,581,293,901.49/691,448.79
  6. Step 6: Final answer
    x = 317,566.97

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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.