Home / 1,755,309.80-2,632,964.70-689,803.40

Finding the Fourth Proportional to 1,755,309.80, 2,632,964.70 and 689,803.40

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Solution

The fourth proportional to 1,755,309.80, 2,632,964.70 and 689,803.40 is: 1,034,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,309.80 : 2,632,964.70 = 689,803.40 : x
  2. Step 2: Convert to fraction form
    1,755,309.80/2,632,964.70 = 689,803.40/x
  3. Step 3: Cross multiply
    1,755,309.80x = 2,632,964.70 × 689,803.40
  4. Step 4: Simplify right side
    1,755,309.80x = 1,816,228,002,139.98
  5. Step 5: Solve for x
    x = 1,816,228,002,139.98/1,755,309.80
  6. Step 6: Final answer
    x = 1,034,705.10

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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.