Home / 861,849.30-1,289,624.63-507,030.42

Finding the Fourth Proportional to 861,849.30, 1,289,624.63 and 507,030.42

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Solution

The fourth proportional to 861,849.30, 1,289,624.63 and 507,030.42 is: 758,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,849.30 : 1,289,624.63 = 507,030.42 : x
  2. Step 2: Convert to fraction form
    861,849.30/1,289,624.63 = 507,030.42/x
  3. Step 3: Cross multiply
    861,849.30x = 1,289,624.63 × 507,030.42
  4. Step 4: Simplify right side
    861,849.30x = 653,878,917,791.25
  5. Step 5: Solve for x
    x = 653,878,917,791.25/861,849.30
  6. Step 6: Final answer
    x = 758,692.87

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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.