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Finding the Fourth Proportional to 495,537.40, 739,561.37 and 447,707.80

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Solution

The fourth proportional to 495,537.40, 739,561.37 and 447,707.80 is: 668,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,537.40 : 739,561.37 = 447,707.80 : x
  2. Step 2: Convert to fraction form
    495,537.40/739,561.37 = 447,707.80/x
  3. Step 3: Cross multiply
    495,537.40x = 739,561.37 × 447,707.80
  4. Step 4: Simplify right side
    495,537.40x = 331,107,393,927.69
  5. Step 5: Solve for x
    x = 331,107,393,927.69/495,537.40
  6. Step 6: Final answer
    x = 668,178.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.