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Finding the Fourth Proportional to 567,561.57, 783,240.98 and 312,921.87

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Solution

The fourth proportional to 567,561.57, 783,240.98 and 312,921.87 is: 431,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,561.57 : 783,240.98 = 312,921.87 : x
  2. Step 2: Convert to fraction form
    567,561.57/783,240.98 = 312,921.87/x
  3. Step 3: Cross multiply
    567,561.57x = 783,240.98 × 312,921.87
  4. Step 4: Simplify right side
    567,561.57x = 245,093,230,557.62
  5. Step 5: Solve for x
    x = 245,093,230,557.62/567,561.57
  6. Step 6: Final answer
    x = 431,835.49

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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.