Home / 646,499.20-968,436.60-365,688.40

Finding the Fourth Proportional to 646,499.20, 968,436.60 and 365,688.40

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Solution

The fourth proportional to 646,499.20, 968,436.60 and 365,688.40 is: 547,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,499.20 : 968,436.60 = 365,688.40 : x
  2. Step 2: Convert to fraction form
    646,499.20/968,436.60 = 365,688.40/x
  3. Step 3: Cross multiply
    646,499.20x = 968,436.60 × 365,688.40
  4. Step 4: Simplify right side
    646,499.20x = 354,146,030,755.44
  5. Step 5: Solve for x
    x = 354,146,030,755.44/646,499.20
  6. Step 6: Final answer
    x = 547,790.36

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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.