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Finding the Fourth Proportional to 804,362.59, 1,109,609.77 and 513,668.60

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Solution

The fourth proportional to 804,362.59, 1,109,609.77 and 513,668.60 is: 708,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,362.59 : 1,109,609.77 = 513,668.60 : x
  2. Step 2: Convert to fraction form
    804,362.59/1,109,609.77 = 513,668.60/x
  3. Step 3: Cross multiply
    804,362.59x = 1,109,609.77 × 513,668.60
  4. Step 4: Simplify right side
    804,362.59x = 569,971,697,102.22
  5. Step 5: Solve for x
    x = 569,971,697,102.22/804,362.59
  6. Step 6: Final answer
    x = 708,600.45

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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.