Home / 813,687.18-1,122,923.82-451,087.98

Finding the Fourth Proportional to 813,687.18, 1,122,923.82 and 451,087.98

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Solution

The fourth proportional to 813,687.18, 1,122,923.82 and 451,087.98 is: 622,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,687.18 : 1,122,923.82 = 451,087.98 : x
  2. Step 2: Convert to fraction form
    813,687.18/1,122,923.82 = 451,087.98/x
  3. Step 3: Cross multiply
    813,687.18x = 1,122,923.82 × 451,087.98
  4. Step 4: Simplify right side
    813,687.18x = 506,537,437,657.68
  5. Step 5: Solve for x
    x = 506,537,437,657.68/813,687.18
  6. Step 6: Final answer
    x = 622,521.10

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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.