Home / 910,440.80-1,365,531.60-311,429.60

Finding the Fourth Proportional to 910,440.80, 1,365,531.60 and 311,429.60

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Solution

The fourth proportional to 910,440.80, 1,365,531.60 and 311,429.60 is: 467,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,440.80 : 1,365,531.60 = 311,429.60 : x
  2. Step 2: Convert to fraction form
    910,440.80/1,365,531.60 = 311,429.60/x
  3. Step 3: Cross multiply
    910,440.80x = 1,365,531.60 × 311,429.60
  4. Step 4: Simplify right side
    910,440.80x = 425,266,959,975.36
  5. Step 5: Solve for x
    x = 425,266,959,975.36/910,440.80
  6. Step 6: Final answer
    x = 467,100.07

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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.