Home / 915,721.88-1,263,696.27-507,886.07

Finding the Fourth Proportional to 915,721.88, 1,263,696.27 and 507,886.07

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Solution

The fourth proportional to 915,721.88, 1,263,696.27 and 507,886.07 is: 700,882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,721.88 : 1,263,696.27 = 507,886.07 : x
  2. Step 2: Convert to fraction form
    915,721.88/1,263,696.27 = 507,886.07/x
  3. Step 3: Cross multiply
    915,721.88x = 1,263,696.27 × 507,886.07
  4. Step 4: Simplify right side
    915,721.88x = 641,813,732,243.96
  5. Step 5: Solve for x
    x = 641,813,732,243.96/915,721.88
  6. Step 6: Final answer
    x = 700,882.82

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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.