Home / 1,621,209.36-2,431,049.76-947,484.48

Finding the Fourth Proportional to 1,621,209.36, 2,431,049.76 and 947,484.48

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Solution

The fourth proportional to 1,621,209.36, 2,431,049.76 and 947,484.48 is: 1,420,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,209.36 : 2,431,049.76 = 947,484.48 : x
  2. Step 2: Convert to fraction form
    1,621,209.36/2,431,049.76 = 947,484.48/x
  3. Step 3: Cross multiply
    1,621,209.36x = 2,431,049.76 × 947,484.48
  4. Step 4: Simplify right side
    1,621,209.36x = 2,303,381,917,707.72
  5. Step 5: Solve for x
    x = 2,303,381,917,707.72/1,621,209.36
  6. Step 6: Final answer
    x = 1,420,780.05

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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.