Home / 728,937.81-1,005,809.58-422,944.04

Finding the Fourth Proportional to 728,937.81, 1,005,809.58 and 422,944.04

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Solution

The fourth proportional to 728,937.81, 1,005,809.58 and 422,944.04 is: 583,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,937.81 : 1,005,809.58 = 422,944.04 : x
  2. Step 2: Convert to fraction form
    728,937.81/1,005,809.58 = 422,944.04/x
  3. Step 3: Cross multiply
    728,937.81x = 1,005,809.58 × 422,944.04
  4. Step 4: Simplify right side
    728,937.81x = 425,401,162,206.86
  5. Step 5: Solve for x
    x = 425,401,162,206.86/728,937.81
  6. Step 6: Final answer
    x = 583,590.47

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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.