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Finding the Fourth Proportional to 1,047,219, 1,570,828.50 and 259,251

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Solution

The fourth proportional to 1,047,219, 1,570,828.50 and 259,251 is: 388,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,219 : 1,570,828.50 = 259,251 : x
  2. Step 2: Convert to fraction form
    1,047,219/1,570,828.50 = 259,251/x
  3. Step 3: Cross multiply
    1,047,219x = 1,570,828.50 × 259,251
  4. Step 4: Simplify right side
    1,047,219x = 407,238,859,453.50
  5. Step 5: Solve for x
    x = 407,238,859,453.50/1,047,219
  6. Step 6: Final answer
    x = 388,876.50

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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.