Home / 1,407,977.60-2,107,300.80-1,296,003.20

Finding the Fourth Proportional to 1,407,977.60, 2,107,300.80 and 1,296,003.20

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Solution

The fourth proportional to 1,407,977.60, 2,107,300.80 and 1,296,003.20 is: 1,939,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,977.60 : 2,107,300.80 = 1,296,003.20 : x
  2. Step 2: Convert to fraction form
    1,407,977.60/2,107,300.80 = 1,296,003.20/x
  3. Step 3: Cross multiply
    1,407,977.60x = 2,107,300.80 × 1,296,003.20
  4. Step 4: Simplify right side
    1,407,977.60x = 2,731,068,580,162.56
  5. Step 5: Solve for x
    x = 2,731,068,580,162.56/1,407,977.60
  6. Step 6: Final answer
    x = 1,939,710.25

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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.