Home / 1,128,609.10-1,692,969-454,599.39

Finding the Fourth Proportional to 1,128,609.10, 1,692,969 and 454,599.39

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Solution

The fourth proportional to 1,128,609.10, 1,692,969 and 454,599.39 is: 681,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,609.10 : 1,692,969 = 454,599.39 : x
  2. Step 2: Convert to fraction form
    1,128,609.10/1,692,969 = 454,599.39/x
  3. Step 3: Cross multiply
    1,128,609.10x = 1,692,969 × 454,599.39
  4. Step 4: Simplify right side
    1,128,609.10x = 769,622,674,688.91
  5. Step 5: Solve for x
    x = 769,622,674,688.91/1,128,609.10
  6. Step 6: Final answer
    x = 681,921.38

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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.