Home / 766,406.87-1,057,641.77-444,303.69

Finding the Fourth Proportional to 766,406.87, 1,057,641.77 and 444,303.69

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Solution

The fourth proportional to 766,406.87, 1,057,641.77 and 444,303.69 is: 613,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,406.87 : 1,057,641.77 = 444,303.69 : x
  2. Step 2: Convert to fraction form
    766,406.87/1,057,641.77 = 444,303.69/x
  3. Step 3: Cross multiply
    766,406.87x = 1,057,641.77 × 444,303.69
  4. Step 4: Simplify right side
    766,406.87x = 469,914,135,820.92
  5. Step 5: Solve for x
    x = 469,914,135,820.92/766,406.87
  6. Step 6: Final answer
    x = 613,139.25

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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.