Home / 745,351.98-1,028,610.78-418,722.30

Finding the Fourth Proportional to 745,351.98, 1,028,610.78 and 418,722.30

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Solution

The fourth proportional to 745,351.98, 1,028,610.78 and 418,722.30 is: 577,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,351.98 : 1,028,610.78 = 418,722.30 : x
  2. Step 2: Convert to fraction form
    745,351.98/1,028,610.78 = 418,722.30/x
  3. Step 3: Cross multiply
    745,351.98x = 1,028,610.78 × 418,722.30
  4. Step 4: Simplify right side
    745,351.98x = 430,702,271,606.39
  5. Step 5: Solve for x
    x = 430,702,271,606.39/745,351.98
  6. Step 6: Final answer
    x = 577,850.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.