Home / 812,404.40-1,218,816.84-475,729.52

Finding the Fourth Proportional to 812,404.40, 1,218,816.84 and 475,729.52

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Solution

The fourth proportional to 812,404.40, 1,218,816.84 and 475,729.52 is: 713,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,404.40 : 1,218,816.84 = 475,729.52 : x
  2. Step 2: Convert to fraction form
    812,404.40/1,218,816.84 = 475,729.52/x
  3. Step 3: Cross multiply
    812,404.40x = 1,218,816.84 × 475,729.52
  4. Step 4: Simplify right side
    812,404.40x = 579,827,150,261.12
  5. Step 5: Solve for x
    x = 579,827,150,261.12/812,404.40
  6. Step 6: Final answer
    x = 713,717.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.