Home / 718,154.71-1,077,389.59-212,755.19

Finding the Fourth Proportional to 718,154.71, 1,077,389.59 and 212,755.19

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Solution

The fourth proportional to 718,154.71, 1,077,389.59 and 212,755.19 is: 319,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,154.71 : 1,077,389.59 = 212,755.19 : x
  2. Step 2: Convert to fraction form
    718,154.71/1,077,389.59 = 212,755.19/x
  3. Step 3: Cross multiply
    718,154.71x = 1,077,389.59 × 212,755.19
  4. Step 4: Simplify right side
    718,154.71x = 229,220,221,005.64
  5. Step 5: Solve for x
    x = 229,220,221,005.64/718,154.71
  6. Step 6: Final answer
    x = 319,179.45

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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.