Home / 811,207.94-1,216,718.96-212,226.92

Finding the Fourth Proportional to 811,207.94, 1,216,718.96 and 212,226.92

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Solution

The fourth proportional to 811,207.94, 1,216,718.96 and 212,226.92 is: 318,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,207.94 : 1,216,718.96 = 212,226.92 : x
  2. Step 2: Convert to fraction form
    811,207.94/1,216,718.96 = 212,226.92/x
  3. Step 3: Cross multiply
    811,207.94x = 1,216,718.96 × 212,226.92
  4. Step 4: Simplify right side
    811,207.94x = 258,220,517,386.40
  5. Step 5: Solve for x
    x = 258,220,517,386.40/811,207.94
  6. Step 6: Final answer
    x = 318,316.06

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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.