Home / 727,457.49-1,091,188.40-254,142.90

Finding the Fourth Proportional to 727,457.49, 1,091,188.40 and 254,142.90

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Solution

The fourth proportional to 727,457.49, 1,091,188.40 and 254,142.90 is: 381,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,457.49 : 1,091,188.40 = 254,142.90 : x
  2. Step 2: Convert to fraction form
    727,457.49/1,091,188.40 = 254,142.90/x
  3. Step 3: Cross multiply
    727,457.49x = 1,091,188.40 × 254,142.90
  4. Step 4: Simplify right side
    727,457.49x = 277,317,783,151.65
  5. Step 5: Solve for x
    x = 277,317,783,151.65/727,457.49
  6. Step 6: Final answer
    x = 381,215.10

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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.