Home / 718,105.12-1,077,008.43-212,547.52

Finding the Fourth Proportional to 718,105.12, 1,077,008.43 and 212,547.52

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Solution

The fourth proportional to 718,105.12, 1,077,008.43 and 212,547.52 is: 318,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,105.12 : 1,077,008.43 = 212,547.52 : x
  2. Step 2: Convert to fraction form
    718,105.12/1,077,008.43 = 212,547.52/x
  3. Step 3: Cross multiply
    718,105.12x = 1,077,008.43 × 212,547.52
  4. Step 4: Simplify right side
    718,105.12x = 228,915,470,815.59
  5. Step 5: Solve for x
    x = 228,915,470,815.59/718,105.12
  6. Step 6: Final answer
    x = 318,777.10

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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.