Home / 718,878.24-1,078,476.12-213,480.36

Finding the Fourth Proportional to 718,878.24, 1,078,476.12 and 213,480.36

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Solution

The fourth proportional to 718,878.24, 1,078,476.12 and 213,480.36 is: 320,267.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,878.24 : 1,078,476.12 = 213,480.36 : x
  2. Step 2: Convert to fraction form
    718,878.24/1,078,476.12 = 213,480.36/x
  3. Step 3: Cross multiply
    718,878.24x = 1,078,476.12 × 213,480.36
  4. Step 4: Simplify right side
    718,878.24x = 230,233,470,349.00
  5. Step 5: Solve for x
    x = 230,233,470,349.00/718,878.24
  6. Step 6: Final answer
    x = 320,267.69

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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.