Home / 877,475.28-1,315,940.76-316,436.88

Finding the Fourth Proportional to 877,475.28, 1,315,940.76 and 316,436.88

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Solution

The fourth proportional to 877,475.28, 1,315,940.76 and 316,436.88 is: 474,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,475.28 : 1,315,940.76 = 316,436.88 : x
  2. Step 2: Convert to fraction form
    877,475.28/1,315,940.76 = 316,436.88/x
  3. Step 3: Cross multiply
    877,475.28x = 1,315,940.76 × 316,436.88
  4. Step 4: Simplify right side
    877,475.28x = 416,412,188,359.23
  5. Step 5: Solve for x
    x = 416,412,188,359.23/877,475.28
  6. Step 6: Final answer
    x = 474,557.17

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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.