Home / 728,801.91-1,005,703.29-422,854.59

Finding the Fourth Proportional to 728,801.91, 1,005,703.29 and 422,854.59

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Solution

The fourth proportional to 728,801.91, 1,005,703.29 and 422,854.59 is: 583,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,801.91 : 1,005,703.29 = 422,854.59 : x
  2. Step 2: Convert to fraction form
    728,801.91/1,005,703.29 = 422,854.59/x
  3. Step 3: Cross multiply
    728,801.91x = 1,005,703.29 × 422,854.59
  4. Step 4: Simplify right side
    728,801.91x = 425,266,252,354.60
  5. Step 5: Solve for x
    x = 425,266,252,354.60/728,801.91
  6. Step 6: Final answer
    x = 583,514.18

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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.