Home / 767,205-1,058,742.90-427,695.12

Finding the Fourth Proportional to 767,205, 1,058,742.90 and 427,695.12

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Solution

The fourth proportional to 767,205, 1,058,742.90 and 427,695.12 is: 590,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,205 : 1,058,742.90 = 427,695.12 : x
  2. Step 2: Convert to fraction form
    767,205/1,058,742.90 = 427,695.12/x
  3. Step 3: Cross multiply
    767,205x = 1,058,742.90 × 427,695.12
  4. Step 4: Simplify right side
    767,205x = 452,819,171,664.65
  5. Step 5: Solve for x
    x = 452,819,171,664.65/767,205
  6. Step 6: Final answer
    x = 590,219.27

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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.