Home / 1,752,628.30-2,628,942.45-687,705.10

Finding the Fourth Proportional to 1,752,628.30, 2,628,942.45 and 687,705.10

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Solution

The fourth proportional to 1,752,628.30, 2,628,942.45 and 687,705.10 is: 1,031,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,628.30 : 2,628,942.45 = 687,705.10 : x
  2. Step 2: Convert to fraction form
    1,752,628.30/2,628,942.45 = 687,705.10/x
  3. Step 3: Cross multiply
    1,752,628.30x = 2,628,942.45 × 687,705.10
  4. Step 4: Simplify right side
    1,752,628.30x = 1,807,937,130,471.50
  5. Step 5: Solve for x
    x = 1,807,937,130,471.50/1,752,628.30
  6. Step 6: Final answer
    x = 1,031,557.65

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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.