Home / 788,420.48-1,183,515.24-315,435.56

Finding the Fourth Proportional to 788,420.48, 1,183,515.24 and 315,435.56

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Solution

The fourth proportional to 788,420.48, 1,183,515.24 and 315,435.56 is: 473,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,420.48 : 1,183,515.24 = 315,435.56 : x
  2. Step 2: Convert to fraction form
    788,420.48/1,183,515.24 = 315,435.56/x
  3. Step 3: Cross multiply
    788,420.48x = 1,183,515.24 × 315,435.56
  4. Step 4: Simplify right side
    788,420.48x = 373,322,792,497.93
  5. Step 5: Solve for x
    x = 373,322,792,497.93/788,420.48
  6. Step 6: Final answer
    x = 473,507.22

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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.