Home / 754,145.16-1,040,715.95-427,519.81

Finding the Fourth Proportional to 754,145.16, 1,040,715.95 and 427,519.81

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Solution

The fourth proportional to 754,145.16, 1,040,715.95 and 427,519.81 is: 589,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,145.16 : 1,040,715.95 = 427,519.81 : x
  2. Step 2: Convert to fraction form
    754,145.16/1,040,715.95 = 427,519.81/x
  3. Step 3: Cross multiply
    754,145.16x = 1,040,715.95 × 427,519.81
  4. Step 4: Simplify right side
    754,145.16x = 444,926,685,207.97
  5. Step 5: Solve for x
    x = 444,926,685,207.97/754,145.16
  6. Step 6: Final answer
    x = 589,974.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.