Home / 755,327.21-1,042,116.77-428,586.17

Finding the Fourth Proportional to 755,327.21, 1,042,116.77 and 428,586.17

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Solution

The fourth proportional to 755,327.21, 1,042,116.77 and 428,586.17 is: 591,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,327.21 : 1,042,116.77 = 428,586.17 : x
  2. Step 2: Convert to fraction form
    755,327.21/1,042,116.77 = 428,586.17/x
  3. Step 3: Cross multiply
    755,327.21x = 1,042,116.77 × 428,586.17
  4. Step 4: Simplify right side
    755,327.21x = 446,636,827,793.56
  5. Step 5: Solve for x
    x = 446,636,827,793.56/755,327.21
  6. Step 6: Final answer
    x = 591,315.69

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Double scale
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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.