Home / 1,218,106.83-1,680,600.92-708,710.79

Finding the Fourth Proportional to 1,218,106.83, 1,680,600.92 and 708,710.79

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Solution

The fourth proportional to 1,218,106.83, 1,680,600.92 and 708,710.79 is: 977,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,106.83 : 1,680,600.92 = 708,710.79 : x
  2. Step 2: Convert to fraction form
    1,218,106.83/1,680,600.92 = 708,710.79/x
  3. Step 3: Cross multiply
    1,218,106.83x = 1,680,600.92 × 708,710.79
  4. Step 4: Simplify right side
    1,218,106.83x = 1,191,060,002,144.37
  5. Step 5: Solve for x
    x = 1,191,060,002,144.37/1,218,106.83
  6. Step 6: Final answer
    x = 977,796.01

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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.