Home / 767,000.17-1,058,467.21-422,848.55

Finding the Fourth Proportional to 767,000.17, 1,058,467.21 and 422,848.55

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Solution

The fourth proportional to 767,000.17, 1,058,467.21 and 422,848.55 is: 583,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,000.17 : 1,058,467.21 = 422,848.55 : x
  2. Step 2: Convert to fraction form
    767,000.17/1,058,467.21 = 422,848.55/x
  3. Step 3: Cross multiply
    767,000.17x = 1,058,467.21 × 422,848.55
  4. Step 4: Simplify right side
    767,000.17x = 447,571,328,938.62
  5. Step 5: Solve for x
    x = 447,571,328,938.62/767,000.17
  6. Step 6: Final answer
    x = 583,534.85

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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.