Home / 742,660.81-1,112,072.67-512,559.82

Finding the Fourth Proportional to 742,660.81, 1,112,072.67 and 512,559.82

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Solution

The fourth proportional to 742,660.81, 1,112,072.67 and 512,559.82 is: 767,515.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,660.81 : 1,112,072.67 = 512,559.82 : x
  2. Step 2: Convert to fraction form
    742,660.81/1,112,072.67 = 512,559.82/x
  3. Step 3: Cross multiply
    742,660.81x = 1,112,072.67 × 512,559.82
  4. Step 4: Simplify right side
    742,660.81x = 570,003,767,562.12
  5. Step 5: Solve for x
    x = 570,003,767,562.12/742,660.81
  6. Step 6: Final answer
    x = 767,515.61

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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.