Home / 916,663.76-1,265,055.09-508,765.62

Finding the Fourth Proportional to 916,663.76, 1,265,055.09 and 508,765.62

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Solution

The fourth proportional to 916,663.76, 1,265,055.09 and 508,765.62 is: 702,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,663.76 : 1,265,055.09 = 508,765.62 : x
  2. Step 2: Convert to fraction form
    916,663.76/1,265,055.09 = 508,765.62/x
  3. Step 3: Cross multiply
    916,663.76x = 1,265,055.09 × 508,765.62
  4. Step 4: Simplify right side
    916,663.76x = 643,616,537,198.01
  5. Step 5: Solve for x
    x = 643,616,537,198.01/916,663.76
  6. Step 6: Final answer
    x = 702,129.36

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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.