Home / 1,499,254.41-2,069,019.81-820,190.91

Finding the Fourth Proportional to 1,499,254.41, 2,069,019.81 and 820,190.91

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Solution

The fourth proportional to 1,499,254.41, 2,069,019.81 and 820,190.91 is: 1,131,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499,254.41 : 2,069,019.81 = 820,190.91 : x
  2. Step 2: Convert to fraction form
    1,499,254.41/2,069,019.81 = 820,190.91/x
  3. Step 3: Cross multiply
    1,499,254.41x = 2,069,019.81 × 820,190.91
  4. Step 4: Simplify right side
    1,499,254.41x = 1,696,991,240,771.93
  5. Step 5: Solve for x
    x = 1,696,991,240,771.93/1,499,254.41
  6. Step 6: Final answer
    x = 1,131,890.11

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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.