Home / 813,822.56-1,123,088.62-451,261.70

Finding the Fourth Proportional to 813,822.56, 1,123,088.62 and 451,261.70

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Solution

The fourth proportional to 813,822.56, 1,123,088.62 and 451,261.70 is: 622,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,822.56 : 1,123,088.62 = 451,261.70 : x
  2. Step 2: Convert to fraction form
    813,822.56/1,123,088.62 = 451,261.70/x
  3. Step 3: Cross multiply
    813,822.56x = 1,123,088.62 × 451,261.70
  4. Step 4: Simplify right side
    813,822.56x = 506,806,879,911.85
  5. Step 5: Solve for x
    x = 506,806,879,911.85/813,822.56
  6. Step 6: Final answer
    x = 622,748.62

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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.