Home / 540,882.08-811,721.76-256,573.45

Finding the Fourth Proportional to 540,882.08, 811,721.76 and 256,573.45

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Solution

The fourth proportional to 540,882.08, 811,721.76 and 256,573.45 is: 385,049.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,882.08 : 811,721.76 = 256,573.45 : x
  2. Step 2: Convert to fraction form
    540,882.08/811,721.76 = 256,573.45/x
  3. Step 3: Cross multiply
    540,882.08x = 811,721.76 × 256,573.45
  4. Step 4: Simplify right side
    540,882.08x = 208,266,250,172.81
  5. Step 5: Solve for x
    x = 208,266,250,172.81/540,882.08
  6. Step 6: Final answer
    x = 385,049.27

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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.