Home / 726,174.45-1,002,050.63-420,189.93

Finding the Fourth Proportional to 726,174.45, 1,002,050.63 and 420,189.93

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Solution

The fourth proportional to 726,174.45, 1,002,050.63 and 420,189.93 is: 579,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,174.45 : 1,002,050.63 = 420,189.93 : x
  2. Step 2: Convert to fraction form
    726,174.45/1,002,050.63 = 420,189.93/x
  3. Step 3: Cross multiply
    726,174.45x = 1,002,050.63 × 420,189.93
  4. Step 4: Simplify right side
    726,174.45x = 421,051,583,550.92
  5. Step 5: Solve for x
    x = 421,051,583,550.92/726,174.45
  6. Step 6: Final answer
    x = 579,821.53

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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.