Home / 1,243,649.60-1,864,552.80-843,291.20

Finding the Fourth Proportional to 1,243,649.60, 1,864,552.80 and 843,291.20

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Solution

The fourth proportional to 1,243,649.60, 1,864,552.80 and 843,291.20 is: 1,264,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,649.60 : 1,864,552.80 = 843,291.20 : x
  2. Step 2: Convert to fraction form
    1,243,649.60/1,864,552.80 = 843,291.20/x
  3. Step 3: Cross multiply
    1,243,649.60x = 1,864,552.80 × 843,291.20
  4. Step 4: Simplify right side
    1,243,649.60x = 1,572,360,968,175.36
  5. Step 5: Solve for x
    x = 1,572,360,968,175.36/1,243,649.60
  6. Step 6: Final answer
    x = 1,264,311.88

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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.