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Finding the Fourth Proportional to 1,375,551, 1,898,435.34 and 771,939

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Solution

The fourth proportional to 1,375,551, 1,898,435.34 and 771,939 is: 1,065,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,551 : 1,898,435.34 = 771,939 : x
  2. Step 2: Convert to fraction form
    1,375,551/1,898,435.34 = 771,939/x
  3. Step 3: Cross multiply
    1,375,551x = 1,898,435.34 × 771,939
  4. Step 4: Simplify right side
    1,375,551x = 1,465,476,277,924.26
  5. Step 5: Solve for x
    x = 1,465,476,277,924.26/1,375,551
  6. Step 6: Final answer
    x = 1,065,374.00

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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.