Home / 1,319,480.04-1,821,100.20-905,676.74

Finding the Fourth Proportional to 1,319,480.04, 1,821,100.20 and 905,676.74

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Solution

The fourth proportional to 1,319,480.04, 1,821,100.20 and 905,676.74 is: 1,249,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,480.04 : 1,821,100.20 = 905,676.74 : x
  2. Step 2: Convert to fraction form
    1,319,480.04/1,821,100.20 = 905,676.74/x
  3. Step 3: Cross multiply
    1,319,480.04x = 1,821,100.20 × 905,676.74
  4. Step 4: Simplify right side
    1,319,480.04x = 1,649,328,092,349.35
  5. Step 5: Solve for x
    x = 1,649,328,092,349.35/1,319,480.04
  6. Step 6: Final answer
    x = 1,249,983.36

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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.