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Finding the Fourth Proportional to 541,403.37, 747,216.72 and 311,916.96

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Solution

The fourth proportional to 541,403.37, 747,216.72 and 311,916.96 is: 430,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,403.37 : 747,216.72 = 311,916.96 : x
  2. Step 2: Convert to fraction form
    541,403.37/747,216.72 = 311,916.96/x
  3. Step 3: Cross multiply
    541,403.37x = 747,216.72 × 311,916.96
  4. Step 4: Simplify right side
    541,403.37x = 233,069,567,763.57
  5. Step 5: Solve for x
    x = 233,069,567,763.57/541,403.37
  6. Step 6: Final answer
    x = 430,491.53

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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.