Home / 2,478,218.03-3,419,999.81-1,390,570.05

Finding the Fourth Proportional to 2,478,218.03, 3,419,999.81 and 1,390,570.05

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Solution

The fourth proportional to 2,478,218.03, 3,419,999.81 and 1,390,570.05 is: 1,919,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,218.03 : 3,419,999.81 = 1,390,570.05 : x
  2. Step 2: Convert to fraction form
    2,478,218.03/3,419,999.81 = 1,390,570.05/x
  3. Step 3: Cross multiply
    2,478,218.03x = 3,419,999.81 × 1,390,570.05
  4. Step 4: Simplify right side
    2,478,218.03x = 4,755,749,299,838.84
  5. Step 5: Solve for x
    x = 4,755,749,299,838.84/2,478,218.03
  6. Step 6: Final answer
    x = 1,919,019.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.