Home / 711,820.90-1,067,420.31-213,068.26

Finding the Fourth Proportional to 711,820.90, 1,067,420.31 and 213,068.26

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Solution

The fourth proportional to 711,820.90, 1,067,420.31 and 213,068.26 is: 319,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,820.90 : 1,067,420.31 = 213,068.26 : x
  2. Step 2: Convert to fraction form
    711,820.90/1,067,420.31 = 213,068.26/x
  3. Step 3: Cross multiply
    711,820.90x = 1,067,420.31 × 213,068.26
  4. Step 4: Simplify right side
    711,820.90x = 227,433,388,140.36
  5. Step 5: Solve for x
    x = 227,433,388,140.36/711,820.90
  6. Step 6: Final answer
    x = 319,509.29

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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.