Home / 922,724.60-1,383,670.54-389,971.40

Finding the Fourth Proportional to 922,724.60, 1,383,670.54 and 389,971.40

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Solution

The fourth proportional to 922,724.60, 1,383,670.54 and 389,971.40 is: 584,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,724.60 : 1,383,670.54 = 389,971.40 : x
  2. Step 2: Convert to fraction form
    922,724.60/1,383,670.54 = 389,971.40/x
  3. Step 3: Cross multiply
    922,724.60x = 1,383,670.54 × 389,971.40
  4. Step 4: Simplify right side
    922,724.60x = 539,591,937,622.56
  5. Step 5: Solve for x
    x = 539,591,937,622.56/922,724.60
  6. Step 6: Final answer
    x = 584,781.13

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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.