Home / 989,640.08-1,364,801.60-836,998.32

Finding the Fourth Proportional to 989,640.08, 1,364,801.60 and 836,998.32

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Solution

The fourth proportional to 989,640.08, 1,364,801.60 and 836,998.32 is: 1,154,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,640.08 : 1,364,801.60 = 836,998.32 : x
  2. Step 2: Convert to fraction form
    989,640.08/1,364,801.60 = 836,998.32/x
  3. Step 3: Cross multiply
    989,640.08x = 1,364,801.60 × 836,998.32
  4. Step 4: Simplify right side
    989,640.08x = 1,142,336,646,333.31
  5. Step 5: Solve for x
    x = 1,142,336,646,333.31/989,640.08
  6. Step 6: Final answer
    x = 1,154,295.05

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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.