Home / 885,305.70-1,328,378.68-458,761.80

Finding the Fourth Proportional to 885,305.70, 1,328,378.68 and 458,761.80

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Solution

The fourth proportional to 885,305.70, 1,328,378.68 and 458,761.80 is: 688,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,305.70 : 1,328,378.68 = 458,761.80 : x
  2. Step 2: Convert to fraction form
    885,305.70/1,328,378.68 = 458,761.80/x
  3. Step 3: Cross multiply
    885,305.70x = 1,328,378.68 × 458,761.80
  4. Step 4: Simplify right side
    885,305.70x = 609,409,394,318.42
  5. Step 5: Solve for x
    x = 609,409,394,318.42/885,305.70
  6. Step 6: Final answer
    x = 688,360.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.