Home / 738,724.36-1,019,448.66-416,434.60

Finding the Fourth Proportional to 738,724.36, 1,019,448.66 and 416,434.60

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Solution

The fourth proportional to 738,724.36, 1,019,448.66 and 416,434.60 is: 574,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,724.36 : 1,019,448.66 = 416,434.60 : x
  2. Step 2: Convert to fraction form
    738,724.36/1,019,448.66 = 416,434.60/x
  3. Step 3: Cross multiply
    738,724.36x = 1,019,448.66 × 416,434.60
  4. Step 4: Simplify right side
    738,724.36x = 424,533,694,947.64
  5. Step 5: Solve for x
    x = 424,533,694,947.64/738,724.36
  6. Step 6: Final answer
    x = 574,684.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.