Home / 693,152.97-1,039,828.64-213,421.37

Finding the Fourth Proportional to 693,152.97, 1,039,828.64 and 213,421.37

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Solution

The fourth proportional to 693,152.97, 1,039,828.64 and 213,421.37 is: 320,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,152.97 : 1,039,828.64 = 213,421.37 : x
  2. Step 2: Convert to fraction form
    693,152.97/1,039,828.64 = 213,421.37/x
  3. Step 3: Cross multiply
    693,152.97x = 1,039,828.64 × 213,421.37
  4. Step 4: Simplify right side
    693,152.97x = 221,921,646,647.79
  5. Step 5: Solve for x
    x = 221,921,646,647.79/693,152.97
  6. Step 6: Final answer
    x = 320,162.58

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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.