Home / 1,129,785-1,694,675.94-288,336.72

Finding the Fourth Proportional to 1,129,785, 1,694,675.94 and 288,336.72

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Solution

The fourth proportional to 1,129,785, 1,694,675.94 and 288,336.72 is: 432,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,785 : 1,694,675.94 = 288,336.72 : x
  2. Step 2: Convert to fraction form
    1,129,785/1,694,675.94 = 288,336.72/x
  3. Step 3: Cross multiply
    1,129,785x = 1,694,675.94 × 288,336.72
  4. Step 4: Simplify right side
    1,129,785x = 488,637,302,002.52
  5. Step 5: Solve for x
    x = 488,637,302,002.52/1,129,785
  6. Step 6: Final answer
    x = 432,504.68

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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.