Home / 718,510.50-1,077,641.82-213,065.64

Finding the Fourth Proportional to 718,510.50, 1,077,641.82 and 213,065.64

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Solution

The fourth proportional to 718,510.50, 1,077,641.82 and 213,065.64 is: 319,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,510.50 : 1,077,641.82 = 213,065.64 : x
  2. Step 2: Convert to fraction form
    718,510.50/1,077,641.82 = 213,065.64/x
  3. Step 3: Cross multiply
    718,510.50x = 1,077,641.82 × 213,065.64
  4. Step 4: Simplify right side
    718,510.50x = 229,608,444,069.07
  5. Step 5: Solve for x
    x = 229,608,444,069.07/718,510.50
  6. Step 6: Final answer
    x = 319,561.71

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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.