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Finding the Fourth Proportional to 370,010.84, 554,460.39 and 285,643.67

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Solution

The fourth proportional to 370,010.84, 554,460.39 and 285,643.67 is: 428,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,010.84 : 554,460.39 = 285,643.67 : x
  2. Step 2: Convert to fraction form
    370,010.84/554,460.39 = 285,643.67/x
  3. Step 3: Cross multiply
    370,010.84x = 554,460.39 × 285,643.67
  4. Step 4: Simplify right side
    370,010.84x = 158,378,097,896.93
  5. Step 5: Solve for x
    x = 158,378,097,896.93/370,010.84
  6. Step 6: Final answer
    x = 428,036.38

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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.