Home / 776,447.03-1,071,219.58-449,581.65

Finding the Fourth Proportional to 776,447.03, 1,071,219.58 and 449,581.65

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Solution

The fourth proportional to 776,447.03, 1,071,219.58 and 449,581.65 is: 620,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,447.03 : 1,071,219.58 = 449,581.65 : x
  2. Step 2: Convert to fraction form
    776,447.03/1,071,219.58 = 449,581.65/x
  3. Step 3: Cross multiply
    776,447.03x = 1,071,219.58 × 449,581.65
  4. Step 4: Simplify right side
    776,447.03x = 481,600,666,288.71
  5. Step 5: Solve for x
    x = 481,600,666,288.71/776,447.03
  6. Step 6: Final answer
    x = 620,262.10

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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.