Home / 682,972.31-942,625.16-407,347.84

Finding the Fourth Proportional to 682,972.31, 942,625.16 and 407,347.84

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Solution

The fourth proportional to 682,972.31, 942,625.16 and 407,347.84 is: 562,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,972.31 : 942,625.16 = 407,347.84 : x
  2. Step 2: Convert to fraction form
    682,972.31/942,625.16 = 407,347.84/x
  3. Step 3: Cross multiply
    682,972.31x = 942,625.16 × 407,347.84
  4. Step 4: Simplify right side
    682,972.31x = 383,976,323,164.95
  5. Step 5: Solve for x
    x = 383,976,323,164.95/682,972.31
  6. Step 6: Final answer
    x = 562,213.60

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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.