Home / 867,060.40-1,299,715.80-394,085.20

Finding the Fourth Proportional to 867,060.40, 1,299,715.80 and 394,085.20

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Solution

The fourth proportional to 867,060.40, 1,299,715.80 and 394,085.20 is: 590,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,060.40 : 1,299,715.80 = 394,085.20 : x
  2. Step 2: Convert to fraction form
    867,060.40/1,299,715.80 = 394,085.20/x
  3. Step 3: Cross multiply
    867,060.40x = 1,299,715.80 × 394,085.20
  4. Step 4: Simplify right side
    867,060.40x = 512,198,760,986.16
  5. Step 5: Solve for x
    x = 512,198,760,986.16/867,060.40
  6. Step 6: Final answer
    x = 590,730.20

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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.