Home / 646,655.88-969,985.74-225,931.80

Finding the Fourth Proportional to 646,655.88, 969,985.74 and 225,931.80

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Solution

The fourth proportional to 646,655.88, 969,985.74 and 225,931.80 is: 338,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,655.88 : 969,985.74 = 225,931.80 : x
  2. Step 2: Convert to fraction form
    646,655.88/969,985.74 = 225,931.80/x
  3. Step 3: Cross multiply
    646,655.88x = 969,985.74 × 225,931.80
  4. Step 4: Simplify right side
    646,655.88x = 219,150,624,212.53
  5. Step 5: Solve for x
    x = 219,150,624,212.53/646,655.88
  6. Step 6: Final answer
    x = 338,898.37

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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.