Home / 1,755,309.80-2,632,964.70-690,386.60

Finding the Fourth Proportional to 1,755,309.80, 2,632,964.70 and 690,386.60

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Solution

The fourth proportional to 1,755,309.80, 2,632,964.70 and 690,386.60 is: 1,035,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,309.80 : 2,632,964.70 = 690,386.60 : x
  2. Step 2: Convert to fraction form
    1,755,309.80/2,632,964.70 = 690,386.60/x
  3. Step 3: Cross multiply
    1,755,309.80x = 2,632,964.70 × 690,386.60
  4. Step 4: Simplify right side
    1,755,309.80x = 1,817,763,547,153.02
  5. Step 5: Solve for x
    x = 1,817,763,547,153.02/1,755,309.80
  6. Step 6: Final answer
    x = 1,035,579.90

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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.