Home / 728,303.49-1,005,063.11-422,561.92

Finding the Fourth Proportional to 728,303.49, 1,005,063.11 and 422,561.92

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Solution

The fourth proportional to 728,303.49, 1,005,063.11 and 422,561.92 is: 583,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,303.49 : 1,005,063.11 = 422,561.92 : x
  2. Step 2: Convert to fraction form
    728,303.49/1,005,063.11 = 422,561.92/x
  3. Step 3: Cross multiply
    728,303.49x = 1,005,063.11 × 422,561.92
  4. Step 4: Simplify right side
    728,303.49x = 424,701,394,441.91
  5. Step 5: Solve for x
    x = 424,701,394,441.91/728,303.49
  6. Step 6: Final answer
    x = 583,137.94

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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.