Home / 718,700.24-1,078,209.72-213,301.52

Finding the Fourth Proportional to 718,700.24, 1,078,209.72 and 213,301.52

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Solution

The fourth proportional to 718,700.24, 1,078,209.72 and 213,301.52 is: 319,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,700.24 : 1,078,209.72 = 213,301.52 : x
  2. Step 2: Convert to fraction form
    718,700.24/1,078,209.72 = 213,301.52/x
  3. Step 3: Cross multiply
    718,700.24x = 1,078,209.72 × 213,301.52
  4. Step 4: Simplify right side
    718,700.24x = 229,983,772,154.77
  5. Step 5: Solve for x
    x = 229,983,772,154.77/718,700.24
  6. Step 6: Final answer
    x = 319,999.58

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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.