Home / 480,333.07-720,485.94-143,376.51

Finding the Fourth Proportional to 480,333.07, 720,485.94 and 143,376.51

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Solution

The fourth proportional to 480,333.07, 720,485.94 and 143,376.51 is: 215,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,333.07 : 720,485.94 = 143,376.51 : x
  2. Step 2: Convert to fraction form
    480,333.07/720,485.94 = 143,376.51/x
  3. Step 3: Cross multiply
    480,333.07x = 720,485.94 × 143,376.51
  4. Step 4: Simplify right side
    480,333.07x = 103,300,762,820.75
  5. Step 5: Solve for x
    x = 103,300,762,820.75/480,333.07
  6. Step 6: Final answer
    x = 215,060.69

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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.