Home / 728,450.98-1,091,741.32-348,802.84

Finding the Fourth Proportional to 728,450.98, 1,091,741.32 and 348,802.84

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Solution

The fourth proportional to 728,450.98, 1,091,741.32 and 348,802.84 is: 522,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,450.98 : 1,091,741.32 = 348,802.84 : x
  2. Step 2: Convert to fraction form
    728,450.98/1,091,741.32 = 348,802.84/x
  3. Step 3: Cross multiply
    728,450.98x = 1,091,741.32 × 348,802.84
  4. Step 4: Simplify right side
    728,450.98x = 380,802,472,961.35
  5. Step 5: Solve for x
    x = 380,802,472,961.35/728,450.98
  6. Step 6: Final answer
    x = 522,756.48

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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.