Home / 579,708.43-869,155.18-255,342.58

Finding the Fourth Proportional to 579,708.43, 869,155.18 and 255,342.58

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Solution

The fourth proportional to 579,708.43, 869,155.18 and 255,342.58 is: 382,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,708.43 : 869,155.18 = 255,342.58 : x
  2. Step 2: Convert to fraction form
    579,708.43/869,155.18 = 255,342.58/x
  3. Step 3: Cross multiply
    579,708.43x = 869,155.18 × 255,342.58
  4. Step 4: Simplify right side
    579,708.43x = 221,932,323,908.68
  5. Step 5: Solve for x
    x = 221,932,323,908.68/579,708.43
  6. Step 6: Final answer
    x = 382,834.39

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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.