Home / 728,828.94-1,005,808.95-422,882.22

Finding the Fourth Proportional to 728,828.94, 1,005,808.95 and 422,882.22

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Solution

The fourth proportional to 728,828.94, 1,005,808.95 and 422,882.22 is: 583,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,828.94 : 1,005,808.95 = 422,882.22 : x
  2. Step 2: Convert to fraction form
    728,828.94/1,005,808.95 = 422,882.22/x
  3. Step 3: Cross multiply
    728,828.94x = 1,005,808.95 × 422,882.22
  4. Step 4: Simplify right side
    728,828.94x = 425,338,721,671.87
  5. Step 5: Solve for x
    x = 425,338,721,671.87/728,828.94
  6. Step 6: Final answer
    x = 583,591.98

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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.