Home / 397,746.72-549,093.60-306,898.56

Finding the Fourth Proportional to 397,746.72, 549,093.60 and 306,898.56

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Solution

The fourth proportional to 397,746.72, 549,093.60 and 306,898.56 is: 423,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,746.72 : 549,093.60 = 306,898.56 : x
  2. Step 2: Convert to fraction form
    397,746.72/549,093.60 = 306,898.56/x
  3. Step 3: Cross multiply
    397,746.72x = 549,093.60 × 306,898.56
  4. Step 4: Simplify right side
    397,746.72x = 168,516,035,145.22
  5. Step 5: Solve for x
    x = 168,516,035,145.22/397,746.72
  6. Step 6: Final answer
    x = 423,676.74

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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.