Home / 910,456.80-1,365,555.60-311,445.60

Finding the Fourth Proportional to 910,456.80, 1,365,555.60 and 311,445.60

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Solution

The fourth proportional to 910,456.80, 1,365,555.60 and 311,445.60 is: 467,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,456.80 : 1,365,555.60 = 311,445.60 : x
  2. Step 2: Convert to fraction form
    910,456.80/1,365,555.60 = 311,445.60/x
  3. Step 3: Cross multiply
    910,456.80x = 1,365,555.60 × 311,445.60
  4. Step 4: Simplify right side
    910,456.80x = 425,296,283,175.36
  5. Step 5: Solve for x
    x = 425,296,283,175.36/910,456.80
  6. Step 6: Final answer
    x = 467,124.07

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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.