Home / 813,247.36-1,122,150.72-511,227.52

Finding the Fourth Proportional to 813,247.36, 1,122,150.72 and 511,227.52

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Solution

The fourth proportional to 813,247.36, 1,122,150.72 and 511,227.52 is: 705,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,247.36 : 1,122,150.72 = 511,227.52 : x
  2. Step 2: Convert to fraction form
    813,247.36/1,122,150.72 = 511,227.52/x
  3. Step 3: Cross multiply
    813,247.36x = 1,122,150.72 × 511,227.52
  4. Step 4: Simplify right side
    813,247.36x = 573,674,329,651.82
  5. Step 5: Solve for x
    x = 573,674,329,651.82/813,247.36
  6. Step 6: Final answer
    x = 705,411.86

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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.