Home / 718,511.50-1,077,643.32-213,066.64

Finding the Fourth Proportional to 718,511.50, 1,077,643.32 and 213,066.64

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Solution

The fourth proportional to 718,511.50, 1,077,643.32 and 213,066.64 is: 319,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,511.50 : 1,077,643.32 = 213,066.64 : x
  2. Step 2: Convert to fraction form
    718,511.50/1,077,643.32 = 213,066.64/x
  3. Step 3: Cross multiply
    718,511.50x = 1,077,643.32 × 213,066.64
  4. Step 4: Simplify right side
    718,511.50x = 229,609,841,310.85
  5. Step 5: Solve for x
    x = 229,609,841,310.85/718,511.50
  6. Step 6: Final answer
    x = 319,563.21

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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.