Home / 1,242,053.60-1,863,080.40-443,361.20

Finding the Fourth Proportional to 1,242,053.60, 1,863,080.40 and 443,361.20

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Solution

The fourth proportional to 1,242,053.60, 1,863,080.40 and 443,361.20 is: 665,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,053.60 : 1,863,080.40 = 443,361.20 : x
  2. Step 2: Convert to fraction form
    1,242,053.60/1,863,080.40 = 443,361.20/x
  3. Step 3: Cross multiply
    1,242,053.60x = 1,863,080.40 × 443,361.20
  4. Step 4: Simplify right side
    1,242,053.60x = 826,017,561,840.48
  5. Step 5: Solve for x
    x = 826,017,561,840.48/1,242,053.60
  6. Step 6: Final answer
    x = 665,041.80

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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.