Home / 1,269,776.40-1,904,664.60-989,503.44

Finding the Fourth Proportional to 1,269,776.40, 1,904,664.60 and 989,503.44

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Solution

The fourth proportional to 1,269,776.40, 1,904,664.60 and 989,503.44 is: 1,484,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,776.40 : 1,904,664.60 = 989,503.44 : x
  2. Step 2: Convert to fraction form
    1,269,776.40/1,904,664.60 = 989,503.44/x
  3. Step 3: Cross multiply
    1,269,776.40x = 1,904,664.60 × 989,503.44
  4. Step 4: Simplify right side
    1,269,776.40x = 1,884,672,173,746.22
  5. Step 5: Solve for x
    x = 1,884,672,173,746.22/1,269,776.40
  6. Step 6: Final answer
    x = 1,484,255.16

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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.