Home / 3,111,319.40-4,666,979.10-867,457.40

Finding the Fourth Proportional to 3,111,319.40, 4,666,979.10 and 867,457.40

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Solution

The fourth proportional to 3,111,319.40, 4,666,979.10 and 867,457.40 is: 1,301,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,319.40 : 4,666,979.10 = 867,457.40 : x
  2. Step 2: Convert to fraction form
    3,111,319.40/4,666,979.10 = 867,457.40/x
  3. Step 3: Cross multiply
    3,111,319.40x = 4,666,979.10 × 867,457.40
  4. Step 4: Simplify right side
    3,111,319.40x = 4,048,405,555,940.34
  5. Step 5: Solve for x
    x = 4,048,405,555,940.34/3,111,319.40
  6. Step 6: Final answer
    x = 1,301,186.10

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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.