Home / 579,448.20-869,039.40-158,756.88

Finding the Fourth Proportional to 579,448.20, 869,039.40 and 158,756.88

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Solution

The fourth proportional to 579,448.20, 869,039.40 and 158,756.88 is: 238,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,448.20 : 869,039.40 = 158,756.88 : x
  2. Step 2: Convert to fraction form
    579,448.20/869,039.40 = 158,756.88/x
  3. Step 3: Cross multiply
    579,448.20x = 869,039.40 × 158,756.88
  4. Step 4: Simplify right side
    579,448.20x = 137,965,983,741.07
  5. Step 5: Solve for x
    x = 137,965,983,741.07/579,448.20
  6. Step 6: Final answer
    x = 238,098.91

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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.