Home / 780,030-1,170,006.73-300,486.51

Finding the Fourth Proportional to 780,030, 1,170,006.73 and 300,486.51

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Solution

The fourth proportional to 780,030, 1,170,006.73 and 300,486.51 is: 450,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,030 : 1,170,006.73 = 300,486.51 : x
  2. Step 2: Convert to fraction form
    780,030/1,170,006.73 = 300,486.51/x
  3. Step 3: Cross multiply
    780,030x = 1,170,006.73 × 300,486.51
  4. Step 4: Simplify right side
    780,030x = 351,571,238,223.00
  5. Step 5: Solve for x
    x = 351,571,238,223.00/780,030
  6. Step 6: Final answer
    x = 450,715.02

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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.