Home / 699,021.05-1,048,534.04-212,707.88

Finding the Fourth Proportional to 699,021.05, 1,048,534.04 and 212,707.88

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Solution

The fourth proportional to 699,021.05, 1,048,534.04 and 212,707.88 is: 319,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,021.05 : 1,048,534.04 = 212,707.88 : x
  2. Step 2: Convert to fraction form
    699,021.05/1,048,534.04 = 212,707.88/x
  3. Step 3: Cross multiply
    699,021.05x = 1,048,534.04 × 212,707.88
  4. Step 4: Simplify right side
    699,021.05x = 223,031,448,045.34
  5. Step 5: Solve for x
    x = 223,031,448,045.34/699,021.05
  6. Step 6: Final answer
    x = 319,062.57

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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.