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Finding the Fourth Proportional to 391,834.08, 540,775.71 and 264,769.38

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Solution

The fourth proportional to 391,834.08, 540,775.71 and 264,769.38 is: 365,411.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,834.08 : 540,775.71 = 264,769.38 : x
  2. Step 2: Convert to fraction form
    391,834.08/540,775.71 = 264,769.38/x
  3. Step 3: Cross multiply
    391,834.08x = 540,775.71 × 264,769.38
  4. Step 4: Simplify right side
    391,834.08x = 143,180,849,455.76
  5. Step 5: Solve for x
    x = 143,180,849,455.76/391,834.08
  6. Step 6: Final answer
    x = 365,411.94

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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.