Home / 1,426,299.69-1,968,204.36-781,674.15

Finding the Fourth Proportional to 1,426,299.69, 1,968,204.36 and 781,674.15

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Solution

The fourth proportional to 1,426,299.69, 1,968,204.36 and 781,674.15 is: 1,078,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,299.69 : 1,968,204.36 = 781,674.15 : x
  2. Step 2: Convert to fraction form
    1,426,299.69/1,968,204.36 = 781,674.15/x
  3. Step 3: Cross multiply
    1,426,299.69x = 1,968,204.36 × 781,674.15
  4. Step 4: Simplify right side
    1,426,299.69x = 1,538,494,470,129.29
  5. Step 5: Solve for x
    x = 1,538,494,470,129.29/1,426,299.69
  6. Step 6: Final answer
    x = 1,078,661.43

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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.