Home / 738,147.78-1,106,361.45-338,830.74

Finding the Fourth Proportional to 738,147.78, 1,106,361.45 and 338,830.74

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Solution

The fourth proportional to 738,147.78, 1,106,361.45 and 338,830.74 is: 507,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,147.78 : 1,106,361.45 = 338,830.74 : x
  2. Step 2: Convert to fraction form
    738,147.78/1,106,361.45 = 338,830.74/x
  3. Step 3: Cross multiply
    738,147.78x = 1,106,361.45 × 338,830.74
  4. Step 4: Simplify right side
    738,147.78x = 374,869,268,810.97
  5. Step 5: Solve for x
    x = 374,869,268,810.97/738,147.78
  6. Step 6: Final answer
    x = 507,851.24

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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.