Home / 1,789,128-2,468,996.64-984,294.72

Finding the Fourth Proportional to 1,789,128, 2,468,996.64 and 984,294.72

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Solution

The fourth proportional to 1,789,128, 2,468,996.64 and 984,294.72 is: 1,358,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,128 : 2,468,996.64 = 984,294.72 : x
  2. Step 2: Convert to fraction form
    1,789,128/2,468,996.64 = 984,294.72/x
  3. Step 3: Cross multiply
    1,789,128x = 2,468,996.64 × 984,294.72
  4. Step 4: Simplify right side
    1,789,128x = 2,430,220,356,449.74
  5. Step 5: Solve for x
    x = 2,430,220,356,449.74/1,789,128
  6. Step 6: Final answer
    x = 1,358,326.71

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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.