Home / 916,708.77-1,265,039.04-508,786.68

Finding the Fourth Proportional to 916,708.77, 1,265,039.04 and 508,786.68

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Solution

The fourth proportional to 916,708.77, 1,265,039.04 and 508,786.68 is: 702,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,708.77 : 1,265,039.04 = 508,786.68 : x
  2. Step 2: Convert to fraction form
    916,708.77/1,265,039.04 = 508,786.68/x
  3. Step 3: Cross multiply
    916,708.77x = 1,265,039.04 × 508,786.68
  4. Step 4: Simplify right side
    916,708.77x = 643,635,013,231.99
  5. Step 5: Solve for x
    x = 643,635,013,231.99/916,708.77
  6. Step 6: Final answer
    x = 702,115.04

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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.