Home / 535,243.10-738,567.42-305,815.25

Finding the Fourth Proportional to 535,243.10, 738,567.42 and 305,815.25

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Solution

The fourth proportional to 535,243.10, 738,567.42 and 305,815.25 is: 421,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,243.10 : 738,567.42 = 305,815.25 : x
  2. Step 2: Convert to fraction form
    535,243.10/738,567.42 = 305,815.25/x
  3. Step 3: Cross multiply
    535,243.10x = 738,567.42 × 305,815.25
  4. Step 4: Simplify right side
    535,243.10x = 225,865,180,189.16
  5. Step 5: Solve for x
    x = 225,865,180,189.16/535,243.10
  6. Step 6: Final answer
    x = 421,986.16

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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.