Home / 1,430,162.56-2,145,210.72-719,999.92

Finding the Fourth Proportional to 1,430,162.56, 2,145,210.72 and 719,999.92

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Solution

The fourth proportional to 1,430,162.56, 2,145,210.72 and 719,999.92 is: 1,079,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,162.56 : 2,145,210.72 = 719,999.92 : x
  2. Step 2: Convert to fraction form
    1,430,162.56/2,145,210.72 = 719,999.92/x
  3. Step 3: Cross multiply
    1,430,162.56x = 2,145,210.72 × 719,999.92
  4. Step 4: Simplify right side
    1,430,162.56x = 1,544,551,546,783.14
  5. Step 5: Solve for x
    x = 1,544,551,546,783.14/1,430,162.56
  6. Step 6: Final answer
    x = 1,079,983.21

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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.