Home / 745,982.56-1,117,646.94-429,786.04

Finding the Fourth Proportional to 745,982.56, 1,117,646.94 and 429,786.04

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Solution

The fourth proportional to 745,982.56, 1,117,646.94 and 429,786.04 is: 643,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,982.56 : 1,117,646.94 = 429,786.04 : x
  2. Step 2: Convert to fraction form
    745,982.56/1,117,646.94 = 429,786.04/x
  3. Step 3: Cross multiply
    745,982.56x = 1,117,646.94 × 429,786.04
  4. Step 4: Simplify right side
    745,982.56x = 480,349,052,460.72
  5. Step 5: Solve for x
    x = 480,349,052,460.72/745,982.56
  6. Step 6: Final answer
    x = 643,914.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.