Home / 683,311.64-942,977.12-377,395.70

Finding the Fourth Proportional to 683,311.64, 942,977.12 and 377,395.70

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Solution

The fourth proportional to 683,311.64, 942,977.12 and 377,395.70 is: 520,809.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,311.64 : 942,977.12 = 377,395.70 : x
  2. Step 2: Convert to fraction form
    683,311.64/942,977.12 = 377,395.70/x
  3. Step 3: Cross multiply
    683,311.64x = 942,977.12 × 377,395.70
  4. Step 4: Simplify right side
    683,311.64x = 355,875,503,684.52
  5. Step 5: Solve for x
    x = 355,875,503,684.52/683,311.64
  6. Step 6: Final answer
    x = 520,809.96

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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.