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Finding the Fourth Proportional to 880,877.76, 1,320,900 and 341,386.56

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Solution

The fourth proportional to 880,877.76, 1,320,900 and 341,386.56 is: 511,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,877.76 : 1,320,900 = 341,386.56 : x
  2. Step 2: Convert to fraction form
    880,877.76/1,320,900 = 341,386.56/x
  3. Step 3: Cross multiply
    880,877.76x = 1,320,900 × 341,386.56
  4. Step 4: Simplify right side
    880,877.76x = 450,937,507,104
  5. Step 5: Solve for x
    x = 450,937,507,104/880,877.76
  6. Step 6: Final answer
    x = 511,918.37

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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.