Home / 2,720,400.30-4,089,457.80-1,927,175.40

Finding the Fourth Proportional to 2,720,400.30, 4,089,457.80 and 1,927,175.40

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Solution

The fourth proportional to 2,720,400.30, 4,089,457.80 and 1,927,175.40 is: 2,897,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720,400.30 : 4,089,457.80 = 1,927,175.40 : x
  2. Step 2: Convert to fraction form
    2,720,400.30/4,089,457.80 = 1,927,175.40/x
  3. Step 3: Cross multiply
    2,720,400.30x = 4,089,457.80 × 1,927,175.40
  4. Step 4: Simplify right side
    2,720,400.30x = 7,881,102,471,498.12
  5. Step 5: Solve for x
    x = 7,881,102,471,498.12/2,720,400.30
  6. Step 6: Final answer
    x = 2,897,037.79

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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.