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Finding the Fourth Proportional to 683,971.72, 943,883.94 and 373,880.64

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Solution

The fourth proportional to 683,971.72, 943,883.94 and 373,880.64 is: 515,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,971.72 : 943,883.94 = 373,880.64 : x
  2. Step 2: Convert to fraction form
    683,971.72/943,883.94 = 373,880.64/x
  3. Step 3: Cross multiply
    683,971.72x = 943,883.94 × 373,880.64
  4. Step 4: Simplify right side
    683,971.72x = 352,899,931,572.92
  5. Step 5: Solve for x
    x = 352,899,931,572.92/683,971.72
  6. Step 6: Final answer
    x = 515,956.90

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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.