Home / 745,621.97-1,028,958.26-406,090.22

Finding the Fourth Proportional to 745,621.97, 1,028,958.26 and 406,090.22

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Solution

The fourth proportional to 745,621.97, 1,028,958.26 and 406,090.22 is: 560,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,621.97 : 1,028,958.26 = 406,090.22 : x
  2. Step 2: Convert to fraction form
    745,621.97/1,028,958.26 = 406,090.22/x
  3. Step 3: Cross multiply
    745,621.97x = 1,028,958.26 × 406,090.22
  4. Step 4: Simplify right side
    745,621.97x = 417,849,878,998.98
  5. Step 5: Solve for x
    x = 417,849,878,998.98/745,621.97
  6. Step 6: Final answer
    x = 560,404.47

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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.