Home / 451,267.02-621,436.05-422,418.59

Finding the Fourth Proportional to 451,267.02, 621,436.05 and 422,418.59

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Solution

The fourth proportional to 451,267.02, 621,436.05 and 422,418.59 is: 581,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,267.02 : 621,436.05 = 422,418.59 : x
  2. Step 2: Convert to fraction form
    451,267.02/621,436.05 = 422,418.59/x
  3. Step 3: Cross multiply
    451,267.02x = 621,436.05 × 422,418.59
  4. Step 4: Simplify right side
    451,267.02x = 262,506,142,734.95
  5. Step 5: Solve for x
    x = 262,506,142,734.95/451,267.02
  6. Step 6: Final answer
    x = 581,709.12

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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.