Home / 1,118,011.23-1,542,821.79-621,293.43

Finding the Fourth Proportional to 1,118,011.23, 1,542,821.79 and 621,293.43

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Solution

The fourth proportional to 1,118,011.23, 1,542,821.79 and 621,293.43 is: 857,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,011.23 : 1,542,821.79 = 621,293.43 : x
  2. Step 2: Convert to fraction form
    1,118,011.23/1,542,821.79 = 621,293.43/x
  3. Step 3: Cross multiply
    1,118,011.23x = 1,542,821.79 × 621,293.43
  4. Step 4: Simplify right side
    1,118,011.23x = 958,545,041,787.84
  5. Step 5: Solve for x
    x = 958,545,041,787.84/1,118,011.23
  6. Step 6: Final answer
    x = 857,366.20

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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.