Home / 1,781,108.20-2,669,588.70-715,623.40

Finding the Fourth Proportional to 1,781,108.20, 2,669,588.70 and 715,623.40

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Solution

The fourth proportional to 1,781,108.20, 2,669,588.70 and 715,623.40 is: 1,072,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,108.20 : 2,669,588.70 = 715,623.40 : x
  2. Step 2: Convert to fraction form
    1,781,108.20/2,669,588.70 = 715,623.40/x
  3. Step 3: Cross multiply
    1,781,108.20x = 2,669,588.70 × 715,623.40
  4. Step 4: Simplify right side
    1,781,108.20x = 1,910,420,142,095.58
  5. Step 5: Solve for x
    x = 1,910,420,142,095.58/1,781,108.20
  6. Step 6: Final answer
    x = 1,072,601.96

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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.