Home / 1,008,491.87-1,391,718.74-555,782.87

Finding the Fourth Proportional to 1,008,491.87, 1,391,718.74 and 555,782.87

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Solution

The fourth proportional to 1,008,491.87, 1,391,718.74 and 555,782.87 is: 766,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,491.87 : 1,391,718.74 = 555,782.87 : x
  2. Step 2: Convert to fraction form
    1,008,491.87/1,391,718.74 = 555,782.87/x
  3. Step 3: Cross multiply
    1,008,491.87x = 1,391,718.74 × 555,782.87
  4. Step 4: Simplify right side
    1,008,491.87x = 773,493,436,250.37
  5. Step 5: Solve for x
    x = 773,493,436,250.37/1,008,491.87
  6. Step 6: Final answer
    x = 766,980.34

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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.