Home / 767,090.84-1,058,562.43-418,217.85

Finding the Fourth Proportional to 767,090.84, 1,058,562.43 and 418,217.85

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Solution

The fourth proportional to 767,090.84, 1,058,562.43 and 418,217.85 is: 577,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,090.84 : 1,058,562.43 = 418,217.85 : x
  2. Step 2: Convert to fraction form
    767,090.84/1,058,562.43 = 418,217.85/x
  3. Step 3: Cross multiply
    767,090.84x = 1,058,562.43 × 418,217.85
  4. Step 4: Simplify right side
    767,090.84x = 442,709,702,519.83
  5. Step 5: Solve for x
    x = 442,709,702,519.83/767,090.84
  6. Step 6: Final answer
    x = 577,128.13

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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.