Home / 1,434,442.59-1,979,543.75-789,885.63

Finding the Fourth Proportional to 1,434,442.59, 1,979,543.75 and 789,885.63

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Solution

The fourth proportional to 1,434,442.59, 1,979,543.75 and 789,885.63 is: 1,090,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,442.59 : 1,979,543.75 = 789,885.63 : x
  2. Step 2: Convert to fraction form
    1,434,442.59/1,979,543.75 = 789,885.63/x
  3. Step 3: Cross multiply
    1,434,442.59x = 1,979,543.75 × 789,885.63
  4. Step 4: Simplify right side
    1,434,442.59x = 1,563,613,158,131.88
  5. Step 5: Solve for x
    x = 1,563,613,158,131.88/1,434,442.59
  6. Step 6: Final answer
    x = 1,090,049.31

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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.