Home / 859,285.40-1,288,600.05-260,047.40

Finding the Fourth Proportional to 859,285.40, 1,288,600.05 and 260,047.40

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Solution

The fourth proportional to 859,285.40, 1,288,600.05 and 260,047.40 is: 389,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,285.40 : 1,288,600.05 = 260,047.40 : x
  2. Step 2: Convert to fraction form
    859,285.40/1,288,600.05 = 260,047.40/x
  3. Step 3: Cross multiply
    859,285.40x = 1,288,600.05 × 260,047.40
  4. Step 4: Simplify right side
    859,285.40x = 335,097,092,642.37
  5. Step 5: Solve for x
    x = 335,097,092,642.37/859,285.40
  6. Step 6: Final answer
    x = 389,971.82

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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.