Home / 1,147,919.04-1,721,936.88-389,849.76

Finding the Fourth Proportional to 1,147,919.04, 1,721,936.88 and 389,849.76

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Solution

The fourth proportional to 1,147,919.04, 1,721,936.88 and 389,849.76 is: 584,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,919.04 : 1,721,936.88 = 389,849.76 : x
  2. Step 2: Convert to fraction form
    1,147,919.04/1,721,936.88 = 389,849.76/x
  3. Step 3: Cross multiply
    1,147,919.04x = 1,721,936.88 × 389,849.76
  4. Step 4: Simplify right side
    1,147,919.04x = 671,296,679,403.15
  5. Step 5: Solve for x
    x = 671,296,679,403.15/1,147,919.04
  6. Step 6: Final answer
    x = 584,794.45

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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.