Home / 1,139,331.56-1,709,114.46-429,956.84

Finding the Fourth Proportional to 1,139,331.56, 1,709,114.46 and 429,956.84

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Solution

The fourth proportional to 1,139,331.56, 1,709,114.46 and 429,956.84 is: 644,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,331.56 : 1,709,114.46 = 429,956.84 : x
  2. Step 2: Convert to fraction form
    1,139,331.56/1,709,114.46 = 429,956.84/x
  3. Step 3: Cross multiply
    1,139,331.56x = 1,709,114.46 × 429,956.84
  4. Step 4: Simplify right side
    1,139,331.56x = 734,845,452,419.91
  5. Step 5: Solve for x
    x = 734,845,452,419.91/1,139,331.56
  6. Step 6: Final answer
    x = 644,979.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.