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Finding the Fourth Proportional to 404,211.60, 607,629.60 and 286,696.80

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Solution

The fourth proportional to 404,211.60, 607,629.60 and 286,696.80 is: 430,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,211.60 : 607,629.60 = 286,696.80 : x
  2. Step 2: Convert to fraction form
    404,211.60/607,629.60 = 286,696.80/x
  3. Step 3: Cross multiply
    404,211.60x = 607,629.60 × 286,696.80
  4. Step 4: Simplify right side
    404,211.60x = 174,205,461,905.28
  5. Step 5: Solve for x
    x = 174,205,461,905.28/404,211.60
  6. Step 6: Final answer
    x = 430,975.91

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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.