Home / 718,155.71-1,077,391.09-212,756.19

Finding the Fourth Proportional to 718,155.71, 1,077,391.09 and 212,756.19

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Solution

The fourth proportional to 718,155.71, 1,077,391.09 and 212,756.19 is: 319,180.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,155.71 : 1,077,391.09 = 212,756.19 : x
  2. Step 2: Convert to fraction form
    718,155.71/1,077,391.09 = 212,756.19/x
  3. Step 3: Cross multiply
    718,155.71x = 1,077,391.09 × 212,756.19
  4. Step 4: Simplify right side
    718,155.71x = 229,221,623,448.35
  5. Step 5: Solve for x
    x = 229,221,623,448.35/718,155.71
  6. Step 6: Final answer
    x = 319,180.95

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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.