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Finding the Fourth Proportional to 1,189,973, 1,784,959.50 and 303,509

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Solution

The fourth proportional to 1,189,973, 1,784,959.50 and 303,509 is: 455,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,973 : 1,784,959.50 = 303,509 : x
  2. Step 2: Convert to fraction form
    1,189,973/1,784,959.50 = 303,509/x
  3. Step 3: Cross multiply
    1,189,973x = 1,784,959.50 × 303,509
  4. Step 4: Simplify right side
    1,189,973x = 541,751,272,885.50
  5. Step 5: Solve for x
    x = 541,751,272,885.50/1,189,973
  6. Step 6: Final answer
    x = 455,263.50

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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.