Home / 1,087,614.08-1,501,085.76-628,743.68

Finding the Fourth Proportional to 1,087,614.08, 1,501,085.76 and 628,743.68

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Solution

The fourth proportional to 1,087,614.08, 1,501,085.76 and 628,743.68 is: 867,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,614.08 : 1,501,085.76 = 628,743.68 : x
  2. Step 2: Convert to fraction form
    1,087,614.08/1,501,085.76 = 628,743.68/x
  3. Step 3: Cross multiply
    1,087,614.08x = 1,501,085.76 × 628,743.68
  4. Step 4: Simplify right side
    1,087,614.08x = 943,798,184,738.00
  5. Step 5: Solve for x
    x = 943,798,184,738.00/1,087,614.08
  6. Step 6: Final answer
    x = 867,769.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.