Home / 683,380.98-942,984.81-377,439.12

Finding the Fourth Proportional to 683,380.98, 942,984.81 and 377,439.12

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Solution

The fourth proportional to 683,380.98, 942,984.81 and 377,439.12 is: 520,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,380.98 : 942,984.81 = 377,439.12 : x
  2. Step 2: Convert to fraction form
    683,380.98/942,984.81 = 377,439.12/x
  3. Step 3: Cross multiply
    683,380.98x = 942,984.81 × 377,439.12
  4. Step 4: Simplify right side
    683,380.98x = 355,919,356,859.77
  5. Step 5: Solve for x
    x = 355,919,356,859.77/683,380.98
  6. Step 6: Final answer
    x = 520,821.28

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Double scale
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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.