Home / 751,409.80-1,127,114.70-436,676.20

Finding the Fourth Proportional to 751,409.80, 1,127,114.70 and 436,676.20

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Solution

The fourth proportional to 751,409.80, 1,127,114.70 and 436,676.20 is: 655,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,409.80 : 1,127,114.70 = 436,676.20 : x
  2. Step 2: Convert to fraction form
    751,409.80/1,127,114.70 = 436,676.20/x
  3. Step 3: Cross multiply
    751,409.80x = 1,127,114.70 × 436,676.20
  4. Step 4: Simplify right side
    751,409.80x = 492,184,164,160.14
  5. Step 5: Solve for x
    x = 492,184,164,160.14/751,409.80
  6. Step 6: Final answer
    x = 655,014.30

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Double scale
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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.