Home / 571,515.20-857,097.78-395,155.52

Finding the Fourth Proportional to 571,515.20, 857,097.78 and 395,155.52

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Solution

The fourth proportional to 571,515.20, 857,097.78 and 395,155.52 is: 592,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,515.20 : 857,097.78 = 395,155.52 : x
  2. Step 2: Convert to fraction form
    571,515.20/857,097.78 = 395,155.52/x
  3. Step 3: Cross multiply
    571,515.20x = 857,097.78 × 395,155.52
  4. Step 4: Simplify right side
    571,515.20x = 338,686,918,946.75
  5. Step 5: Solve for x
    x = 338,686,918,946.75/571,515.20
  6. Step 6: Final answer
    x = 592,612.27

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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.