Home / 778,881.80-1,168,629.90-305,486.60

Finding the Fourth Proportional to 778,881.80, 1,168,629.90 and 305,486.60

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Solution

The fourth proportional to 778,881.80, 1,168,629.90 and 305,486.60 is: 458,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,881.80 : 1,168,629.90 = 305,486.60 : x
  2. Step 2: Convert to fraction form
    778,881.80/1,168,629.90 = 305,486.60/x
  3. Step 3: Cross multiply
    778,881.80x = 1,168,629.90 × 305,486.60
  4. Step 4: Simplify right side
    778,881.80x = 357,000,774,809.34
  5. Step 5: Solve for x
    x = 357,000,774,809.34/778,881.80
  6. Step 6: Final answer
    x = 458,350.39

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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.