Home / 1,320,470.10-1,822,256.31-776,628.81

Finding the Fourth Proportional to 1,320,470.10, 1,822,256.31 and 776,628.81

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Solution

The fourth proportional to 1,320,470.10, 1,822,256.31 and 776,628.81 is: 1,071,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,470.10 : 1,822,256.31 = 776,628.81 : x
  2. Step 2: Convert to fraction form
    1,320,470.10/1,822,256.31 = 776,628.81/x
  3. Step 3: Cross multiply
    1,320,470.10x = 1,822,256.31 × 776,628.81
  4. Step 4: Simplify right side
    1,320,470.10x = 1,415,216,740,439.01
  5. Step 5: Solve for x
    x = 1,415,216,740,439.01/1,320,470.10
  6. Step 6: Final answer
    x = 1,071,752.21

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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.