Home / 3,438,054.72-5,157,129.60-913,697.28

Finding the Fourth Proportional to 3,438,054.72, 5,157,129.60 and 913,697.28

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Solution

The fourth proportional to 3,438,054.72, 5,157,129.60 and 913,697.28 is: 1,370,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,054.72 : 5,157,129.60 = 913,697.28 : x
  2. Step 2: Convert to fraction form
    3,438,054.72/5,157,129.60 = 913,697.28/x
  3. Step 3: Cross multiply
    3,438,054.72x = 5,157,129.60 × 913,697.28
  4. Step 4: Simplify right side
    3,438,054.72x = 4,712,055,288,127.49
  5. Step 5: Solve for x
    x = 4,712,055,288,127.49/3,438,054.72
  6. Step 6: Final answer
    x = 1,370,558.55

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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.