Home / 728,799.90-1,005,700.54-422,852.58

Finding the Fourth Proportional to 728,799.90, 1,005,700.54 and 422,852.58

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Solution

The fourth proportional to 728,799.90, 1,005,700.54 and 422,852.58 is: 583,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,799.90 : 1,005,700.54 = 422,852.58 : x
  2. Step 2: Convert to fraction form
    728,799.90/1,005,700.54 = 422,852.58/x
  3. Step 3: Cross multiply
    728,799.90x = 1,005,700.54 × 422,852.58
  4. Step 4: Simplify right side
    728,799.90x = 425,263,068,046.39
  5. Step 5: Solve for x
    x = 425,263,068,046.39/728,799.90
  6. Step 6: Final answer
    x = 583,511.42

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1.5x scale

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.