Home / 742,660.94-1,112,072.85-512,559.95

Finding the Fourth Proportional to 742,660.94, 1,112,072.85 and 512,559.95

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Solution

The fourth proportional to 742,660.94, 1,112,072.85 and 512,559.95 is: 767,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,660.94 : 1,112,072.85 = 512,559.95 : x
  2. Step 2: Convert to fraction form
    742,660.94/1,112,072.85 = 512,559.95/x
  3. Step 3: Cross multiply
    742,660.94x = 1,112,072.85 × 512,559.95
  4. Step 4: Simplify right side
    742,660.94x = 570,004,000,754.09
  5. Step 5: Solve for x
    x = 570,004,000,754.09/742,660.94
  6. Step 6: Final answer
    x = 767,515.79

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1.5x scale

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.