Home / 839,290.17-1,259,307.39-439,835.97

Finding the Fourth Proportional to 839,290.17, 1,259,307.39 and 439,835.97

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Solution

The fourth proportional to 839,290.17, 1,259,307.39 and 439,835.97 is: 659,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,290.17 : 1,259,307.39 = 439,835.97 : x
  2. Step 2: Convert to fraction form
    839,290.17/1,259,307.39 = 439,835.97/x
  3. Step 3: Cross multiply
    839,290.17x = 1,259,307.39 × 439,835.97
  4. Step 4: Simplify right side
    839,290.17x = 553,888,687,408.82
  5. Step 5: Solve for x
    x = 553,888,687,408.82/839,290.17
  6. Step 6: Final answer
    x = 659,948.97

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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.