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Finding the Fourth Proportional to 671,339.45, 926,468.13 and 365,435.79

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Solution

The fourth proportional to 671,339.45, 926,468.13 and 365,435.79 is: 504,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,339.45 : 926,468.13 = 365,435.79 : x
  2. Step 2: Convert to fraction form
    671,339.45/926,468.13 = 365,435.79/x
  3. Step 3: Cross multiply
    671,339.45x = 926,468.13 × 365,435.79
  4. Step 4: Simplify right side
    671,339.45x = 338,564,610,892.50
  5. Step 5: Solve for x
    x = 338,564,610,892.50/671,339.45
  6. Step 6: Final answer
    x = 504,312.10

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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.