Home / 1,515,072.08-2,090,809.32-826,792.40

Finding the Fourth Proportional to 1,515,072.08, 2,090,809.32 and 826,792.40

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Solution

The fourth proportional to 1,515,072.08, 2,090,809.32 and 826,792.40 is: 1,140,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,072.08 : 2,090,809.32 = 826,792.40 : x
  2. Step 2: Convert to fraction form
    1,515,072.08/2,090,809.32 = 826,792.40/x
  3. Step 3: Cross multiply
    1,515,072.08x = 2,090,809.32 × 826,792.40
  4. Step 4: Simplify right side
    1,515,072.08x = 1,728,665,255,625.17
  5. Step 5: Solve for x
    x = 1,728,665,255,625.17/1,515,072.08
  6. Step 6: Final answer
    x = 1,140,978.89

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Why These Related Problems?

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