Home / 840,135.72-1,159,477.20-513,640.29

Finding the Fourth Proportional to 840,135.72, 1,159,477.20 and 513,640.29

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Solution

The fourth proportional to 840,135.72, 1,159,477.20 and 513,640.29 is: 708,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,135.72 : 1,159,477.20 = 513,640.29 : x
  2. Step 2: Convert to fraction form
    840,135.72/1,159,477.20 = 513,640.29/x
  3. Step 3: Cross multiply
    840,135.72x = 1,159,477.20 × 513,640.29
  4. Step 4: Simplify right side
    840,135.72x = 595,554,205,256.39
  5. Step 5: Solve for x
    x = 595,554,205,256.39/840,135.72
  6. Step 6: Final answer
    x = 708,878.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.