Home / 684,825.15-944,829.21-394,430.91

Finding the Fourth Proportional to 684,825.15, 944,829.21 and 394,430.91

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Solution

The fourth proportional to 684,825.15, 944,829.21 and 394,430.91 is: 544,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,825.15 : 944,829.21 = 394,430.91 : x
  2. Step 2: Convert to fraction form
    684,825.15/944,829.21 = 394,430.91/x
  3. Step 3: Cross multiply
    684,825.15x = 944,829.21 × 394,430.91
  4. Step 4: Simplify right side
    684,825.15x = 372,669,845,094.88
  5. Step 5: Solve for x
    x = 372,669,845,094.88/684,825.15
  6. Step 6: Final answer
    x = 544,182.48

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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.