Home / 1,271,635.89-1,907,376.59-451,015.17

Finding the Fourth Proportional to 1,271,635.89, 1,907,376.59 and 451,015.17

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Solution

The fourth proportional to 1,271,635.89, 1,907,376.59 and 451,015.17 is: 676,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,635.89 : 1,907,376.59 = 451,015.17 : x
  2. Step 2: Convert to fraction form
    1,271,635.89/1,907,376.59 = 451,015.17/x
  3. Step 3: Cross multiply
    1,271,635.89x = 1,907,376.59 × 451,015.17
  4. Step 4: Simplify right side
    1,271,635.89x = 860,255,774,737.79
  5. Step 5: Solve for x
    x = 860,255,774,737.79/1,271,635.89
  6. Step 6: Final answer
    x = 676,495.36

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Double scale
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1.5x scale

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.