Home / 645,788.34-968,683.32-308,749.77

Finding the Fourth Proportional to 645,788.34, 968,683.32 and 308,749.77

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Solution

The fourth proportional to 645,788.34, 968,683.32 and 308,749.77 is: 463,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,788.34 : 968,683.32 = 308,749.77 : x
  2. Step 2: Convert to fraction form
    645,788.34/968,683.32 = 308,749.77/x
  3. Step 3: Cross multiply
    645,788.34x = 968,683.32 × 308,749.77
  4. Step 4: Simplify right side
    645,788.34x = 299,080,752,252.84
  5. Step 5: Solve for x
    x = 299,080,752,252.84/645,788.34
  6. Step 6: Final answer
    x = 463,125.04

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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.