Home / 1,385,864.10-2,078,992.98-426,399.19

Finding the Fourth Proportional to 1,385,864.10, 2,078,992.98 and 426,399.19

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Solution

The fourth proportional to 1,385,864.10, 2,078,992.98 and 426,399.19 is: 639,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,864.10 : 2,078,992.98 = 426,399.19 : x
  2. Step 2: Convert to fraction form
    1,385,864.10/2,078,992.98 = 426,399.19/x
  3. Step 3: Cross multiply
    1,385,864.10x = 2,078,992.98 × 426,399.19
  4. Step 4: Simplify right side
    1,385,864.10x = 886,480,917,490.20
  5. Step 5: Solve for x
    x = 886,480,917,490.20/1,385,864.10
  6. Step 6: Final answer
    x = 639,659.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.