Home / 778,350.67-1,074,150.60-451,639.07

Finding the Fourth Proportional to 778,350.67, 1,074,150.60 and 451,639.07

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Solution

The fourth proportional to 778,350.67, 1,074,150.60 and 451,639.07 is: 623,277.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,350.67 : 1,074,150.60 = 451,639.07 : x
  2. Step 2: Convert to fraction form
    778,350.67/1,074,150.60 = 451,639.07/x
  3. Step 3: Cross multiply
    778,350.67x = 1,074,150.60 × 451,639.07
  4. Step 4: Simplify right side
    778,350.67x = 485,128,378,643.75
  5. Step 5: Solve for x
    x = 485,128,378,643.75/778,350.67
  6. Step 6: Final answer
    x = 623,277.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.