Home / 767,042.72-1,058,555.28-427,513.44

Finding the Fourth Proportional to 767,042.72, 1,058,555.28 and 427,513.44

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Solution

The fourth proportional to 767,042.72, 1,058,555.28 and 427,513.44 is: 589,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,042.72 : 1,058,555.28 = 427,513.44 : x
  2. Step 2: Convert to fraction form
    767,042.72/1,058,555.28 = 427,513.44/x
  3. Step 3: Cross multiply
    767,042.72x = 1,058,555.28 × 427,513.44
  4. Step 4: Simplify right side
    767,042.72x = 452,546,609,182.96
  5. Step 5: Solve for x
    x = 452,546,609,182.96/767,042.72
  6. Step 6: Final answer
    x = 589,988.79

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1.5x scale

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.