Home / 916,663.32-1,265,008.86-508,791.33

Finding the Fourth Proportional to 916,663.32, 1,265,008.86 and 508,791.33

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Solution

The fourth proportional to 916,663.32, 1,265,008.86 and 508,791.33 is: 702,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,663.32 : 1,265,008.86 = 508,791.33 : x
  2. Step 2: Convert to fraction form
    916,663.32/1,265,008.86 = 508,791.33/x
  3. Step 3: Cross multiply
    916,663.32x = 1,265,008.86 × 508,791.33
  4. Step 4: Simplify right side
    916,663.32x = 643,625,540,341.18
  5. Step 5: Solve for x
    x = 643,625,540,341.18/916,663.32
  6. Step 6: Final answer
    x = 702,139.52

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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.