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Finding the Fourth Proportional to 671,142.79, 926,196.53 and 365,238.91

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Solution

The fourth proportional to 671,142.79, 926,196.53 and 365,238.91 is: 504,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,142.79 : 926,196.53 = 365,238.91 : x
  2. Step 2: Convert to fraction form
    671,142.79/926,196.53 = 365,238.91/x
  3. Step 3: Cross multiply
    671,142.79x = 926,196.53 × 365,238.91
  4. Step 4: Simplify right side
    671,142.79x = 338,283,011,062.98
  5. Step 5: Solve for x
    x = 338,283,011,062.98/671,142.79
  6. Step 6: Final answer
    x = 504,040.30

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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.