Home / 699,904.56-966,026.28-428,198.96

Finding the Fourth Proportional to 699,904.56, 966,026.28 and 428,198.96

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Solution

The fourth proportional to 699,904.56, 966,026.28 and 428,198.96 is: 591,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,904.56 : 966,026.28 = 428,198.96 : x
  2. Step 2: Convert to fraction form
    699,904.56/966,026.28 = 428,198.96/x
  3. Step 3: Cross multiply
    699,904.56x = 966,026.28 × 428,198.96
  4. Step 4: Simplify right side
    699,904.56x = 413,651,448,428.67
  5. Step 5: Solve for x
    x = 413,651,448,428.67/699,904.56
  6. Step 6: Final answer
    x = 591,011.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.