Home / 916,835.15-1,265,172.41-508,917.13

Finding the Fourth Proportional to 916,835.15, 1,265,172.41 and 508,917.13

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Solution

The fourth proportional to 916,835.15, 1,265,172.41 and 508,917.13 is: 702,272.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,835.15 : 1,265,172.41 = 508,917.13 : x
  2. Step 2: Convert to fraction form
    916,835.15/1,265,172.41 = 508,917.13/x
  3. Step 3: Cross multiply
    916,835.15x = 1,265,172.41 × 508,917.13
  4. Step 4: Simplify right side
    916,835.15x = 643,867,909,961.75
  5. Step 5: Solve for x
    x = 643,867,909,961.75/916,835.15
  6. Step 6: Final answer
    x = 702,272.28

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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.