Home / 920,105.98-1,269,774.48-501,029.55

Finding the Fourth Proportional to 920,105.98, 1,269,774.48 and 501,029.55

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Solution

The fourth proportional to 920,105.98, 1,269,774.48 and 501,029.55 is: 691,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,105.98 : 1,269,774.48 = 501,029.55 : x
  2. Step 2: Convert to fraction form
    920,105.98/1,269,774.48 = 501,029.55/x
  3. Step 3: Cross multiply
    920,105.98x = 1,269,774.48 × 501,029.55
  4. Step 4: Simplify right side
    920,105.98x = 636,194,535,376.45
  5. Step 5: Solve for x
    x = 636,194,535,376.45/920,105.98
  6. Step 6: Final answer
    x = 691,436.15

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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.