Home / 859,961.70-1,186,720.98-492,426.90

Finding the Fourth Proportional to 859,961.70, 1,186,720.98 and 492,426.90

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Solution

The fourth proportional to 859,961.70, 1,186,720.98 and 492,426.90 is: 679,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,961.70 : 1,186,720.98 = 492,426.90 : x
  2. Step 2: Convert to fraction form
    859,961.70/1,186,720.98 = 492,426.90/x
  3. Step 3: Cross multiply
    859,961.70x = 1,186,720.98 × 492,426.90
  4. Step 4: Simplify right side
    859,961.70x = 584,373,333,346.36
  5. Step 5: Solve for x
    x = 584,373,333,346.36/859,961.70
  6. Step 6: Final answer
    x = 679,534.14

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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.