Home / 801,280.98-1,202,509.54-645,391.62

Finding the Fourth Proportional to 801,280.98, 1,202,509.54 and 645,391.62

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Solution

The fourth proportional to 801,280.98, 1,202,509.54 and 645,391.62 is: 968,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,280.98 : 1,202,509.54 = 645,391.62 : x
  2. Step 2: Convert to fraction form
    801,280.98/1,202,509.54 = 645,391.62/x
  3. Step 3: Cross multiply
    801,280.98x = 1,202,509.54 × 645,391.62
  4. Step 4: Simplify right side
    801,280.98x = 776,089,579,865.37
  5. Step 5: Solve for x
    x = 776,089,579,865.37/801,280.98
  6. Step 6: Final answer
    x = 968,561.09

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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.