Home / 820,646.64-1,132,681.32-481,224.24

Finding the Fourth Proportional to 820,646.64, 1,132,681.32 and 481,224.24

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Solution

The fourth proportional to 820,646.64, 1,132,681.32 and 481,224.24 is: 664,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,646.64 : 1,132,681.32 = 481,224.24 : x
  2. Step 2: Convert to fraction form
    820,646.64/1,132,681.32 = 481,224.24/x
  3. Step 3: Cross multiply
    820,646.64x = 1,132,681.32 × 481,224.24
  4. Step 4: Simplify right side
    820,646.64x = 545,073,707,379.20
  5. Step 5: Solve for x
    x = 545,073,707,379.20/820,646.64
  6. Step 6: Final answer
    x = 664,200.25

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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.