Home / 463,868.28-640,145.04-270,271.80

Finding the Fourth Proportional to 463,868.28, 640,145.04 and 270,271.80

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Solution

The fourth proportional to 463,868.28, 640,145.04 and 270,271.80 is: 372,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,868.28 : 640,145.04 = 270,271.80 : x
  2. Step 2: Convert to fraction form
    463,868.28/640,145.04 = 270,271.80/x
  3. Step 3: Cross multiply
    463,868.28x = 640,145.04 × 270,271.80
  4. Step 4: Simplify right side
    463,868.28x = 173,013,152,221.87
  5. Step 5: Solve for x
    x = 173,013,152,221.87/463,868.28
  6. Step 6: Final answer
    x = 372,979.05

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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.