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Finding the Fourth Proportional to 543,490.20, 818,490.20 and 495,008.46

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Solution

The fourth proportional to 543,490.20, 818,490.20 and 495,008.46 is: 745,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,490.20 : 818,490.20 = 495,008.46 : x
  2. Step 2: Convert to fraction form
    543,490.20/818,490.20 = 495,008.46/x
  3. Step 3: Cross multiply
    543,490.20x = 818,490.20 × 495,008.46
  4. Step 4: Simplify right side
    543,490.20x = 405,159,570,952.05
  5. Step 5: Solve for x
    x = 405,159,570,952.05/543,490.20
  6. Step 6: Final answer
    x = 745,477.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.