Home / 1,515,421.22-2,091,552.45-903,613.46

Finding the Fourth Proportional to 1,515,421.22, 2,091,552.45 and 903,613.46

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Solution

The fourth proportional to 1,515,421.22, 2,091,552.45 and 903,613.46 is: 1,247,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,421.22 : 2,091,552.45 = 903,613.46 : x
  2. Step 2: Convert to fraction form
    1,515,421.22/2,091,552.45 = 903,613.46/x
  3. Step 3: Cross multiply
    1,515,421.22x = 2,091,552.45 × 903,613.46
  4. Step 4: Simplify right side
    1,515,421.22x = 1,889,954,946,115.98
  5. Step 5: Solve for x
    x = 1,889,954,946,115.98/1,515,421.22
  6. Step 6: Final answer
    x = 1,247,148.27

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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.