Home / 745,912.36-1,029,379.08-406,402.48

Finding the Fourth Proportional to 745,912.36, 1,029,379.08 and 406,402.48

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Solution

The fourth proportional to 745,912.36, 1,029,379.08 and 406,402.48 is: 560,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,912.36 : 1,029,379.08 = 406,402.48 : x
  2. Step 2: Convert to fraction form
    745,912.36/1,029,379.08 = 406,402.48/x
  3. Step 3: Cross multiply
    745,912.36x = 1,029,379.08 × 406,402.48
  4. Step 4: Simplify right side
    745,912.36x = 418,342,210,972.12
  5. Step 5: Solve for x
    x = 418,342,210,972.12/745,912.36
  6. Step 6: Final answer
    x = 560,846.33

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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.