Home / 929,990.52-1,395,106.06-641,265.51

Finding the Fourth Proportional to 929,990.52, 1,395,106.06 and 641,265.51

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Solution

The fourth proportional to 929,990.52, 1,395,106.06 and 641,265.51 is: 961,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,990.52 : 1,395,106.06 = 641,265.51 : x
  2. Step 2: Convert to fraction form
    929,990.52/1,395,106.06 = 641,265.51/x
  3. Step 3: Cross multiply
    929,990.52x = 1,395,106.06 × 641,265.51
  4. Step 4: Simplify right side
    929,990.52x = 894,633,399,069.99
  5. Step 5: Solve for x
    x = 894,633,399,069.99/929,990.52
  6. Step 6: Final answer
    x = 961,981.20

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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.