Home / 812,338.13-1,121,043.72-444,830.70

Finding the Fourth Proportional to 812,338.13, 1,121,043.72 and 444,830.70

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Solution

The fourth proportional to 812,338.13, 1,121,043.72 and 444,830.70 is: 613,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,338.13 : 1,121,043.72 = 444,830.70 : x
  2. Step 2: Convert to fraction form
    812,338.13/1,121,043.72 = 444,830.70/x
  3. Step 3: Cross multiply
    812,338.13x = 1,121,043.72 × 444,830.70
  4. Step 4: Simplify right side
    812,338.13x = 498,674,662,698.20
  5. Step 5: Solve for x
    x = 498,674,662,698.20/812,338.13
  6. Step 6: Final answer
    x = 613,875.73

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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.