Home / 1,031,996.30-1,424,867.42-644,985.69

Finding the Fourth Proportional to 1,031,996.30, 1,424,867.42 and 644,985.69

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Solution

The fourth proportional to 1,031,996.30, 1,424,867.42 and 644,985.69 is: 890,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,996.30 : 1,424,867.42 = 644,985.69 : x
  2. Step 2: Convert to fraction form
    1,031,996.30/1,424,867.42 = 644,985.69/x
  3. Step 3: Cross multiply
    1,031,996.30x = 1,424,867.42 × 644,985.69
  4. Step 4: Simplify right side
    1,031,996.30x = 919,019,092,316.43
  5. Step 5: Solve for x
    x = 919,019,092,316.43/1,031,996.30
  6. Step 6: Final answer
    x = 890,525.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.