Home / 1,395,323.80-2,092,985.70-993,790.60

Finding the Fourth Proportional to 1,395,323.80, 2,092,985.70 and 993,790.60

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Solution

The fourth proportional to 1,395,323.80, 2,092,985.70 and 993,790.60 is: 1,490,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,323.80 : 2,092,985.70 = 993,790.60 : x
  2. Step 2: Convert to fraction form
    1,395,323.80/2,092,985.70 = 993,790.60/x
  3. Step 3: Cross multiply
    1,395,323.80x = 2,092,985.70 × 993,790.60
  4. Step 4: Simplify right side
    1,395,323.80x = 2,079,989,514,594.42
  5. Step 5: Solve for x
    x = 2,079,989,514,594.42/1,395,323.80
  6. Step 6: Final answer
    x = 1,490,685.90

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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.