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Finding the Fourth Proportional to 671,105.94, 926,126.31 and 369,299.94

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Solution

The fourth proportional to 671,105.94, 926,126.31 and 369,299.94 is: 509,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,105.94 : 926,126.31 = 369,299.94 : x
  2. Step 2: Convert to fraction form
    671,105.94/926,126.31 = 369,299.94/x
  3. Step 3: Cross multiply
    671,105.94x = 926,126.31 × 369,299.94
  4. Step 4: Simplify right side
    671,105.94x = 342,018,390,715.42
  5. Step 5: Solve for x
    x = 342,018,390,715.42/671,105.94
  6. Step 6: Final answer
    x = 509,633.98

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Double scale
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Similar ratio
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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.