Home / 911,925.20-1,258,609.86-617,441.36

Finding the Fourth Proportional to 911,925.20, 1,258,609.86 and 617,441.36

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Solution

The fourth proportional to 911,925.20, 1,258,609.86 and 617,441.36 is: 852,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,925.20 : 1,258,609.86 = 617,441.36 : x
  2. Step 2: Convert to fraction form
    911,925.20/1,258,609.86 = 617,441.36/x
  3. Step 3: Cross multiply
    911,925.20x = 1,258,609.86 × 617,441.36
  4. Step 4: Simplify right side
    911,925.20x = 777,117,783,667.81
  5. Step 5: Solve for x
    x = 777,117,783,667.81/911,925.20
  6. Step 6: Final answer
    x = 852,172.73

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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.