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Finding the Fourth Proportional to 550,666.89, 759,966.12 and 305,674.71

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Solution

The fourth proportional to 550,666.89, 759,966.12 and 305,674.71 is: 421,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,666.89 : 759,966.12 = 305,674.71 : x
  2. Step 2: Convert to fraction form
    550,666.89/759,966.12 = 305,674.71/x
  3. Step 3: Cross multiply
    550,666.89x = 759,966.12 × 305,674.71
  4. Step 4: Simplify right side
    550,666.89x = 232,302,423,340.83
  5. Step 5: Solve for x
    x = 232,302,423,340.83/550,666.89
  6. Step 6: Final answer
    x = 421,856.53

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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.