Home / 867,068.40-1,299,727.80-394,093.20

Finding the Fourth Proportional to 867,068.40, 1,299,727.80 and 394,093.20

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Solution

The fourth proportional to 867,068.40, 1,299,727.80 and 394,093.20 is: 590,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,068.40 : 1,299,727.80 = 394,093.20 : x
  2. Step 2: Convert to fraction form
    867,068.40/1,299,727.80 = 394,093.20/x
  3. Step 3: Cross multiply
    867,068.40x = 1,299,727.80 × 394,093.20
  4. Step 4: Simplify right side
    867,068.40x = 512,213,887,830.96
  5. Step 5: Solve for x
    x = 512,213,887,830.96/867,068.40
  6. Step 6: Final answer
    x = 590,742.19

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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.