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Finding the Fourth Proportional to 613,638.55, 919,202.99 and 500,190.66

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Solution

The fourth proportional to 613,638.55, 919,202.99 and 500,190.66 is: 749,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,638.55 : 919,202.99 = 500,190.66 : x
  2. Step 2: Convert to fraction form
    613,638.55/919,202.99 = 500,190.66/x
  3. Step 3: Cross multiply
    613,638.55x = 919,202.99 × 500,190.66
  4. Step 4: Simplify right side
    613,638.55x = 459,776,751,492.55
  5. Step 5: Solve for x
    x = 459,776,751,492.55/613,638.55
  6. Step 6: Final answer
    x = 749,263.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.