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Finding the Fourth Proportional to 1,405,232, 1,939,482.87 and 801,620

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Solution

The fourth proportional to 1,405,232, 1,939,482.87 and 801,620 is: 1,106,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,232 : 1,939,482.87 = 801,620 : x
  2. Step 2: Convert to fraction form
    1,405,232/1,939,482.87 = 801,620/x
  3. Step 3: Cross multiply
    1,405,232x = 1,939,482.87 × 801,620
  4. Step 4: Simplify right side
    1,405,232x = 1,554,728,258,249.40
  5. Step 5: Solve for x
    x = 1,554,728,258,249.40/1,405,232
  6. Step 6: Final answer
    x = 1,106,385.46

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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.