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Finding the Fourth Proportional to 540,015.90, 745,244.57 and 310,573.34

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Solution

The fourth proportional to 540,015.90, 745,244.57 and 310,573.34 is: 428,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,015.90 : 745,244.57 = 310,573.34 : x
  2. Step 2: Convert to fraction form
    540,015.90/745,244.57 = 310,573.34/x
  3. Step 3: Cross multiply
    540,015.90x = 745,244.57 × 310,573.34
  4. Step 4: Simplify right side
    540,015.90x = 231,453,093,668.90
  5. Step 5: Solve for x
    x = 231,453,093,668.90/540,015.90
  6. Step 6: Final answer
    x = 428,604.22

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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.