Home / 718,106.12-1,077,009.93-212,548.52

Finding the Fourth Proportional to 718,106.12, 1,077,009.93 and 212,548.52

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Solution

The fourth proportional to 718,106.12, 1,077,009.93 and 212,548.52 is: 318,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,106.12 : 1,077,009.93 = 212,548.52 : x
  2. Step 2: Convert to fraction form
    718,106.12/1,077,009.93 = 212,548.52/x
  3. Step 3: Cross multiply
    718,106.12x = 1,077,009.93 × 212,548.52
  4. Step 4: Simplify right side
    718,106.12x = 228,916,866,646.80
  5. Step 5: Solve for x
    x = 228,916,866,646.80/718,106.12
  6. Step 6: Final answer
    x = 318,778.60

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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.