Home / 867,016.72-1,298,842.44-638,898.40

Finding the Fourth Proportional to 867,016.72, 1,298,842.44 and 638,898.40

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Solution

The fourth proportional to 867,016.72, 1,298,842.44 and 638,898.40 is: 957,107.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,016.72 : 1,298,842.44 = 638,898.40 : x
  2. Step 2: Convert to fraction form
    867,016.72/1,298,842.44 = 638,898.40/x
  3. Step 3: Cross multiply
    867,016.72x = 1,298,842.44 × 638,898.40
  4. Step 4: Simplify right side
    867,016.72x = 829,828,356,768.10
  5. Step 5: Solve for x
    x = 829,828,356,768.10/867,016.72
  6. Step 6: Final answer
    x = 957,107.67

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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.