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Finding the Fourth Proportional to 1,309,952.88, 1,964,929.20 and 363,323.76

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Solution

The fourth proportional to 1,309,952.88, 1,964,929.20 and 363,323.76 is: 544,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,952.88 : 1,964,929.20 = 363,323.76 : x
  2. Step 2: Convert to fraction form
    1,309,952.88/1,964,929.20 = 363,323.76/x
  3. Step 3: Cross multiply
    1,309,952.88x = 1,964,929.20 × 363,323.76
  4. Step 4: Simplify right side
    1,309,952.88x = 713,905,465,077.79
  5. Step 5: Solve for x
    x = 713,905,465,077.79/1,309,952.88
  6. Step 6: Final answer
    x = 544,985.61

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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.