Home / 768,562.82-1,153,547.34-389,745.02

Finding the Fourth Proportional to 768,562.82, 1,153,547.34 and 389,745.02

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Solution

The fourth proportional to 768,562.82, 1,153,547.34 and 389,745.02 is: 584,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,562.82 : 1,153,547.34 = 389,745.02 : x
  2. Step 2: Convert to fraction form
    768,562.82/1,153,547.34 = 389,745.02/x
  3. Step 3: Cross multiply
    768,562.82x = 1,153,547.34 × 389,745.02
  4. Step 4: Simplify right side
    768,562.82x = 449,589,331,099.25
  5. Step 5: Solve for x
    x = 449,589,331,099.25/768,562.82
  6. Step 6: Final answer
    x = 584,974.08

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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.