Home / 1,218,122.96-1,680,623.24-708,726.92

Finding the Fourth Proportional to 1,218,122.96, 1,680,623.24 and 708,726.92

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Solution

The fourth proportional to 1,218,122.96, 1,680,623.24 and 708,726.92 is: 977,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,122.96 : 1,680,623.24 = 708,726.92 : x
  2. Step 2: Convert to fraction form
    1,218,122.96/1,680,623.24 = 708,726.92/x
  3. Step 3: Cross multiply
    1,218,122.96x = 1,680,623.24 × 708,726.92
  4. Step 4: Simplify right side
    1,218,122.96x = 1,191,102,920,618.87
  5. Step 5: Solve for x
    x = 1,191,102,920,618.87/1,218,122.96
  6. Step 6: Final answer
    x = 977,818.30

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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.