Home / 778,973.80-1,168,460.70-305,674.60

Finding the Fourth Proportional to 778,973.80, 1,168,460.70 and 305,674.60

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Solution

The fourth proportional to 778,973.80, 1,168,460.70 and 305,674.60 is: 458,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,973.80 : 1,168,460.70 = 305,674.60 : x
  2. Step 2: Convert to fraction form
    778,973.80/1,168,460.70 = 305,674.60/x
  3. Step 3: Cross multiply
    778,973.80x = 1,168,460.70 × 305,674.60
  4. Step 4: Simplify right side
    778,973.80x = 357,168,757,088.22
  5. Step 5: Solve for x
    x = 357,168,757,088.22/778,973.80
  6. Step 6: Final answer
    x = 458,511.90

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Double scale
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Similar ratio
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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.