Home / 684,021.80-1,026,032.70-185,385.80

Finding the Fourth Proportional to 684,021.80, 1,026,032.70 and 185,385.80

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Solution

The fourth proportional to 684,021.80, 1,026,032.70 and 185,385.80 is: 278,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,021.80 : 1,026,032.70 = 185,385.80 : x
  2. Step 2: Convert to fraction form
    684,021.80/1,026,032.70 = 185,385.80/x
  3. Step 3: Cross multiply
    684,021.80x = 1,026,032.70 × 185,385.80
  4. Step 4: Simplify right side
    684,021.80x = 190,211,892,915.66
  5. Step 5: Solve for x
    x = 190,211,892,915.66/684,021.80
  6. Step 6: Final answer
    x = 278,078.70

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Double scale
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Similar ratio
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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.