Home / 1,427,939.10-2,142,005.85-455,226.30

Finding the Fourth Proportional to 1,427,939.10, 2,142,005.85 and 455,226.30

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Solution

The fourth proportional to 1,427,939.10, 2,142,005.85 and 455,226.30 is: 682,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,939.10 : 2,142,005.85 = 455,226.30 : x
  2. Step 2: Convert to fraction form
    1,427,939.10/2,142,005.85 = 455,226.30/x
  3. Step 3: Cross multiply
    1,427,939.10x = 2,142,005.85 × 455,226.30
  4. Step 4: Simplify right side
    1,427,939.10x = 975,097,397,673.86
  5. Step 5: Solve for x
    x = 975,097,397,673.86/1,427,939.10
  6. Step 6: Final answer
    x = 682,870.44

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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.