Home / 549,917.78-758,916.81-308,278.04

Finding the Fourth Proportional to 549,917.78, 758,916.81 and 308,278.04

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Solution

The fourth proportional to 549,917.78, 758,916.81 and 308,278.04 is: 425,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,917.78 : 758,916.81 = 308,278.04 : x
  2. Step 2: Convert to fraction form
    549,917.78/758,916.81 = 308,278.04/x
  3. Step 3: Cross multiply
    549,917.78x = 758,916.81 × 308,278.04
  4. Step 4: Simplify right side
    549,917.78x = 233,957,382,915.27
  5. Step 5: Solve for x
    x = 233,957,382,915.27/549,917.78
  6. Step 6: Final answer
    x = 425,440.66

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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.