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Finding the Fourth Proportional to 1,319,787.63, 1,822,132.44 and 907,035.39

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Solution

The fourth proportional to 1,319,787.63, 1,822,132.44 and 907,035.39 is: 1,252,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,787.63 : 1,822,132.44 = 907,035.39 : x
  2. Step 2: Convert to fraction form
    1,319,787.63/1,822,132.44 = 907,035.39/x
  3. Step 3: Cross multiply
    1,319,787.63x = 1,822,132.44 × 907,035.39
  4. Step 4: Simplify right side
    1,319,787.63x = 1,652,738,608,347.05
  5. Step 5: Solve for x
    x = 1,652,738,608,347.05/1,319,787.63
  6. Step 6: Final answer
    x = 1,252,276.18

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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.