Home / 729,268.80-1,006,441.84-406,984.28

Finding the Fourth Proportional to 729,268.80, 1,006,441.84 and 406,984.28

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Solution

The fourth proportional to 729,268.80, 1,006,441.84 and 406,984.28 is: 561,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,268.80 : 1,006,441.84 = 406,984.28 : x
  2. Step 2: Convert to fraction form
    729,268.80/1,006,441.84 = 406,984.28/x
  3. Step 3: Cross multiply
    729,268.80x = 1,006,441.84 × 406,984.28
  4. Step 4: Simplify right side
    729,268.80x = 409,606,007,614.28
  5. Step 5: Solve for x
    x = 409,606,007,614.28/729,268.80
  6. Step 6: Final answer
    x = 561,666.71

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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.