Home / 813,324.81-1,122,374.55-445,799.07

Finding the Fourth Proportional to 813,324.81, 1,122,374.55 and 445,799.07

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Solution

The fourth proportional to 813,324.81, 1,122,374.55 and 445,799.07 is: 615,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,324.81 : 1,122,374.55 = 445,799.07 : x
  2. Step 2: Convert to fraction form
    813,324.81/1,122,374.55 = 445,799.07/x
  3. Step 3: Cross multiply
    813,324.81x = 1,122,374.55 × 445,799.07
  4. Step 4: Simplify right side
    813,324.81x = 500,353,530,581.67
  5. Step 5: Solve for x
    x = 500,353,530,581.67/813,324.81
  6. Step 6: Final answer
    x = 615,195.21

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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.