Home / 819,697.16-1,131,130.87-452,178.54

Finding the Fourth Proportional to 819,697.16, 1,131,130.87 and 452,178.54

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Solution

The fourth proportional to 819,697.16, 1,131,130.87 and 452,178.54 is: 623,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,697.16 : 1,131,130.87 = 452,178.54 : x
  2. Step 2: Convert to fraction form
    819,697.16/1,131,130.87 = 452,178.54/x
  3. Step 3: Cross multiply
    819,697.16x = 1,131,130.87 × 452,178.54
  4. Step 4: Simplify right side
    819,697.16x = 511,473,103,084.64
  5. Step 5: Solve for x
    x = 511,473,103,084.64/819,697.16
  6. Step 6: Final answer
    x = 623,978.14

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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.