Home / 778,922.60-1,168,383.90-498,986.60

Finding the Fourth Proportional to 778,922.60, 1,168,383.90 and 498,986.60

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Solution

The fourth proportional to 778,922.60, 1,168,383.90 and 498,986.60 is: 748,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,922.60 : 1,168,383.90 = 498,986.60 : x
  2. Step 2: Convert to fraction form
    778,922.60/1,168,383.90 = 498,986.60/x
  3. Step 3: Cross multiply
    778,922.60x = 1,168,383.90 × 498,986.60
  4. Step 4: Simplify right side
    778,922.60x = 583,007,909,755.74
  5. Step 5: Solve for x
    x = 583,007,909,755.74/778,922.60
  6. Step 6: Final answer
    x = 748,479.90

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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.