Home / 776,671.68-1,165,140.36-355,983.60

Finding the Fourth Proportional to 776,671.68, 1,165,140.36 and 355,983.60

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Solution

The fourth proportional to 776,671.68, 1,165,140.36 and 355,983.60 is: 534,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,671.68 : 1,165,140.36 = 355,983.60 : x
  2. Step 2: Convert to fraction form
    776,671.68/1,165,140.36 = 355,983.60/x
  3. Step 3: Cross multiply
    776,671.68x = 1,165,140.36 × 355,983.60
  4. Step 4: Simplify right side
    776,671.68x = 414,770,859,858.10
  5. Step 5: Solve for x
    x = 414,770,859,858.10/776,671.68
  6. Step 6: Final answer
    x = 534,036.29

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1.5x scale

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.