Home / 1,218,009-1,680,855.72-674,182.26

Finding the Fourth Proportional to 1,218,009, 1,680,855.72 and 674,182.26

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Solution

The fourth proportional to 1,218,009, 1,680,855.72 and 674,182.26 is: 930,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,009 : 1,680,855.72 = 674,182.26 : x
  2. Step 2: Convert to fraction form
    1,218,009/1,680,855.72 = 674,182.26/x
  3. Step 3: Cross multiply
    1,218,009x = 1,680,855.72 × 674,182.26
  4. Step 4: Simplify right side
    1,218,009x = 1,133,203,108,043.53
  5. Step 5: Solve for x
    x = 1,133,203,108,043.53/1,218,009
  6. Step 6: Final answer
    x = 930,373.35

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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.