Home / 859,750.75-1,287,659.44-410,787.19

Finding the Fourth Proportional to 859,750.75, 1,287,659.44 and 410,787.19

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Solution

The fourth proportional to 859,750.75, 1,287,659.44 and 410,787.19 is: 615,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,750.75 : 1,287,659.44 = 410,787.19 : x
  2. Step 2: Convert to fraction form
    859,750.75/1,287,659.44 = 410,787.19/x
  3. Step 3: Cross multiply
    859,750.75x = 1,287,659.44 × 410,787.19
  4. Step 4: Simplify right side
    859,750.75x = 528,953,994,542.34
  5. Step 5: Solve for x
    x = 528,953,994,542.34/859,750.75
  6. Step 6: Final answer
    x = 615,241.10

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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.