Home / 642,182.69-962,637.39-358,003.22

Finding the Fourth Proportional to 642,182.69, 962,637.39 and 358,003.22

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Solution

The fourth proportional to 642,182.69, 962,637.39 and 358,003.22 is: 536,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,182.69 : 962,637.39 = 358,003.22 : x
  2. Step 2: Convert to fraction form
    642,182.69/962,637.39 = 358,003.22/x
  3. Step 3: Cross multiply
    642,182.69x = 962,637.39 × 358,003.22
  4. Step 4: Simplify right side
    642,182.69x = 344,627,280,499.21
  5. Step 5: Solve for x
    x = 344,627,280,499.21/642,182.69
  6. Step 6: Final answer
    x = 536,649.91

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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.