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Finding the Fourth Proportional to 611,574.57, 844,000.93 and 339,643.67

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Solution

The fourth proportional to 611,574.57, 844,000.93 and 339,643.67 is: 468,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,574.57 : 844,000.93 = 339,643.67 : x
  2. Step 2: Convert to fraction form
    611,574.57/844,000.93 = 339,643.67/x
  3. Step 3: Cross multiply
    611,574.57x = 844,000.93 × 339,643.67
  4. Step 4: Simplify right side
    611,574.57x = 286,659,569,553.16
  5. Step 5: Solve for x
    x = 286,659,569,553.16/611,574.57
  6. Step 6: Final answer
    x = 468,723.82

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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.