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Finding the Fourth Proportional to 377,353.53, 563,874.35 and 286,899.21

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Solution

The fourth proportional to 377,353.53, 563,874.35 and 286,899.21 is: 428,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,353.53 : 563,874.35 = 286,899.21 : x
  2. Step 2: Convert to fraction form
    377,353.53/563,874.35 = 286,899.21/x
  3. Step 3: Cross multiply
    377,353.53x = 563,874.35 × 286,899.21
  4. Step 4: Simplify right side
    377,353.53x = 161,775,104,119.77
  5. Step 5: Solve for x
    x = 161,775,104,119.77/377,353.53
  6. Step 6: Final answer
    x = 428,709.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.