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Finding the Fourth Proportional to 778,841.80, 1,168,918.80 and 305,866.60

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Solution

The fourth proportional to 778,841.80, 1,168,918.80 and 305,866.60 is: 459,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,841.80 : 1,168,918.80 = 305,866.60 : x
  2. Step 2: Convert to fraction form
    778,841.80/1,168,918.80 = 305,866.60/x
  3. Step 3: Cross multiply
    778,841.80x = 1,168,918.80 × 305,866.60
  4. Step 4: Simplify right side
    778,841.80x = 357,533,219,032.08
  5. Step 5: Solve for x
    x = 357,533,219,032.08/778,841.80
  6. Step 6: Final answer
    x = 459,057.56

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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.