Home / 768,705.54-1,153,058.34-389,567.22

Finding the Fourth Proportional to 768,705.54, 1,153,058.34 and 389,567.22

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Solution

The fourth proportional to 768,705.54, 1,153,058.34 and 389,567.22 is: 584,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,705.54 : 1,153,058.34 = 389,567.22 : x
  2. Step 2: Convert to fraction form
    768,705.54/1,153,058.34 = 389,567.22/x
  3. Step 3: Cross multiply
    768,705.54x = 1,153,058.34 × 389,567.22
  4. Step 4: Simplify right side
    768,705.54x = 449,193,732,011.62
  5. Step 5: Solve for x
    x = 449,193,732,011.62/768,705.54
  6. Step 6: Final answer
    x = 584,350.85

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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.