Home / 688,208.34-1,031,915.61-266,992.14

Finding the Fourth Proportional to 688,208.34, 1,031,915.61 and 266,992.14

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Solution

The fourth proportional to 688,208.34, 1,031,915.61 and 266,992.14 is: 400,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,208.34 : 1,031,915.61 = 266,992.14 : x
  2. Step 2: Convert to fraction form
    688,208.34/1,031,915.61 = 266,992.14/x
  3. Step 3: Cross multiply
    688,208.34x = 1,031,915.61 × 266,992.14
  4. Step 4: Simplify right side
    688,208.34x = 275,513,357,013.31
  5. Step 5: Solve for x
    x = 275,513,357,013.31/688,208.34
  6. Step 6: Final answer
    x = 400,334.23

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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.