Home / 648,111.38-971,856.53-306,270.32

Finding the Fourth Proportional to 648,111.38, 971,856.53 and 306,270.32

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Solution

The fourth proportional to 648,111.38, 971,856.53 and 306,270.32 is: 459,258.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,111.38 : 971,856.53 = 306,270.32 : x
  2. Step 2: Convert to fraction form
    648,111.38/971,856.53 = 306,270.32/x
  3. Step 3: Cross multiply
    648,111.38x = 971,856.53 × 306,270.32
  4. Step 4: Simplify right side
    648,111.38x = 297,650,805,195.07
  5. Step 5: Solve for x
    x = 297,650,805,195.07/648,111.38
  6. Step 6: Final answer
    x = 459,258.73

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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.