Home / 916,799.80-1,265,120.37-508,869.58

Finding the Fourth Proportional to 916,799.80, 1,265,120.37 and 508,869.58

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Solution

The fourth proportional to 916,799.80, 1,265,120.37 and 508,869.58 is: 702,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,799.80 : 1,265,120.37 = 508,869.58 : x
  2. Step 2: Convert to fraction form
    916,799.80/1,265,120.37 = 508,869.58/x
  3. Step 3: Cross multiply
    916,799.80x = 1,265,120.37 × 508,869.58
  4. Step 4: Simplify right side
    916,799.80x = 643,781,271,331.35
  5. Step 5: Solve for x
    x = 643,781,271,331.35/916,799.80
  6. Step 6: Final answer
    x = 702,204.86

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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.