Home / 813,467.85-1,122,583.70-445,944.35

Finding the Fourth Proportional to 813,467.85, 1,122,583.70 and 445,944.35

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Solution

The fourth proportional to 813,467.85, 1,122,583.70 and 445,944.35 is: 615,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,467.85 : 1,122,583.70 = 445,944.35 : x
  2. Step 2: Convert to fraction form
    813,467.85/1,122,583.70 = 445,944.35/x
  3. Step 3: Cross multiply
    813,467.85x = 1,122,583.70 × 445,944.35
  4. Step 4: Simplify right side
    813,467.85x = 500,609,853,919.04
  5. Step 5: Solve for x
    x = 500,609,853,919.04/813,467.85
  6. Step 6: Final answer
    x = 615,402.14

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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.