Home / 1,427,207.20-2,140,810.80-1,405,088.80

Finding the Fourth Proportional to 1,427,207.20, 2,140,810.80 and 1,405,088.80

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Solution

The fourth proportional to 1,427,207.20, 2,140,810.80 and 1,405,088.80 is: 2,107,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,207.20 : 2,140,810.80 = 1,405,088.80 : x
  2. Step 2: Convert to fraction form
    1,427,207.20/2,140,810.80 = 1,405,088.80/x
  3. Step 3: Cross multiply
    1,427,207.20x = 2,140,810.80 × 1,405,088.80
  4. Step 4: Simplify right side
    1,427,207.20x = 3,008,029,277,999.04
  5. Step 5: Solve for x
    x = 3,008,029,277,999.04/1,427,207.20
  6. Step 6: Final answer
    x = 2,107,633.20

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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.