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Finding the Fourth Proportional to 756,711, 1,043,670.42 and 484,804.13

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Solution

The fourth proportional to 756,711, 1,043,670.42 and 484,804.13 is: 668,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,711 : 1,043,670.42 = 484,804.13 : x
  2. Step 2: Convert to fraction form
    756,711/1,043,670.42 = 484,804.13/x
  3. Step 3: Cross multiply
    756,711x = 1,043,670.42 × 484,804.13
  4. Step 4: Simplify right side
    756,711x = 505,975,724,756.48
  5. Step 5: Solve for x
    x = 505,975,724,756.48/756,711
  6. Step 6: Final answer
    x = 668,651.21

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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.