Home / 790,121.69-1,185,358.40-310,395.95

Finding the Fourth Proportional to 790,121.69, 1,185,358.40 and 310,395.95

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Solution

The fourth proportional to 790,121.69, 1,185,358.40 and 310,395.95 is: 465,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,121.69 : 1,185,358.40 = 310,395.95 : x
  2. Step 2: Convert to fraction form
    790,121.69/1,185,358.40 = 310,395.95/x
  3. Step 3: Cross multiply
    790,121.69x = 1,185,358.40 × 310,395.95
  4. Step 4: Simplify right side
    790,121.69x = 367,930,446,658.48
  5. Step 5: Solve for x
    x = 367,930,446,658.48/790,121.69
  6. Step 6: Final answer
    x = 465,663.01

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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.