Home / 1,286,625.16-1,930,566.53-909,966.39

Finding the Fourth Proportional to 1,286,625.16, 1,930,566.53 and 909,966.39

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Solution

The fourth proportional to 1,286,625.16, 1,930,566.53 and 909,966.39 is: 1,365,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,625.16 : 1,930,566.53 = 909,966.39 : x
  2. Step 2: Convert to fraction form
    1,286,625.16/1,930,566.53 = 909,966.39/x
  3. Step 3: Cross multiply
    1,286,625.16x = 1,930,566.53 × 909,966.39
  4. Step 4: Simplify right side
    1,286,625.16x = 1,756,750,655,958.93
  5. Step 5: Solve for x
    x = 1,756,750,655,958.93/1,286,625.16
  6. Step 6: Final answer
    x = 1,365,394.30

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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.