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Finding the Fourth Proportional to 475,121.04, 711,024.83 and 388,733.51

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Solution

The fourth proportional to 475,121.04, 711,024.83 and 388,733.51 is: 581,744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,121.04 : 711,024.83 = 388,733.51 : x
  2. Step 2: Convert to fraction form
    475,121.04/711,024.83 = 388,733.51/x
  3. Step 3: Cross multiply
    475,121.04x = 711,024.83 × 388,733.51
  4. Step 4: Simplify right side
    475,121.04x = 276,399,172,364.26
  5. Step 5: Solve for x
    x = 276,399,172,364.26/475,121.04
  6. Step 6: Final answer
    x = 581,744.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.