Home / 780,694.70-1,077,308.66-436,558.98

Finding the Fourth Proportional to 780,694.70, 1,077,308.66 and 436,558.98

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Solution

The fourth proportional to 780,694.70, 1,077,308.66 and 436,558.98 is: 602,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,694.70 : 1,077,308.66 = 436,558.98 : x
  2. Step 2: Convert to fraction form
    780,694.70/1,077,308.66 = 436,558.98/x
  3. Step 3: Cross multiply
    780,694.70x = 1,077,308.66 × 436,558.98
  4. Step 4: Simplify right side
    780,694.70x = 470,308,769,754.77
  5. Step 5: Solve for x
    x = 470,308,769,754.77/780,694.70
  6. Step 6: Final answer
    x = 602,423.42

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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.