Home / 1,434,476.40-1,979,577.72-789,894.96

Finding the Fourth Proportional to 1,434,476.40, 1,979,577.72 and 789,894.96

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Solution

The fourth proportional to 1,434,476.40, 1,979,577.72 and 789,894.96 is: 1,090,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,476.40 : 1,979,577.72 = 789,894.96 : x
  2. Step 2: Convert to fraction form
    1,434,476.40/1,979,577.72 = 789,894.96/x
  3. Step 3: Cross multiply
    1,434,476.40x = 1,979,577.72 × 789,894.96
  4. Step 4: Simplify right side
    1,434,476.40x = 1,563,658,463,956.29
  5. Step 5: Solve for x
    x = 1,563,658,463,956.29/1,434,476.40
  6. Step 6: Final answer
    x = 1,090,055.20

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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.