Home / 877,573.20-1,316,359.78-212,725.20

Finding the Fourth Proportional to 877,573.20, 1,316,359.78 and 212,725.20

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Solution

The fourth proportional to 877,573.20, 1,316,359.78 and 212,725.20 is: 319,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,573.20 : 1,316,359.78 = 212,725.20 : x
  2. Step 2: Convert to fraction form
    877,573.20/1,316,359.78 = 212,725.20/x
  3. Step 3: Cross multiply
    877,573.20x = 1,316,359.78 × 212,725.20
  4. Step 4: Simplify right side
    877,573.20x = 280,022,897,472.46
  5. Step 5: Solve for x
    x = 280,022,897,472.46/877,573.20
  6. Step 6: Final answer
    x = 319,087.80

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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.