Home / 745,731.36-1,029,134.16-406,231.20

Finding the Fourth Proportional to 745,731.36, 1,029,134.16 and 406,231.20

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Solution

The fourth proportional to 745,731.36, 1,029,134.16 and 406,231.20 is: 560,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,731.36 : 1,029,134.16 = 406,231.20 : x
  2. Step 2: Convert to fraction form
    745,731.36/1,029,134.16 = 406,231.20/x
  3. Step 3: Cross multiply
    745,731.36x = 1,029,134.16 × 406,231.20
  4. Step 4: Simplify right side
    745,731.36x = 418,066,404,777.79
  5. Step 5: Solve for x
    x = 418,066,404,777.79/745,731.36
  6. Step 6: Final answer
    x = 560,612.61

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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.