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Finding the Fourth Proportional to 507,349.36, 700,100.58 and 289,556.97

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Solution

The fourth proportional to 507,349.36, 700,100.58 and 289,556.97 is: 399,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,349.36 : 700,100.58 = 289,556.97 : x
  2. Step 2: Convert to fraction form
    507,349.36/700,100.58 = 289,556.97/x
  3. Step 3: Cross multiply
    507,349.36x = 700,100.58 × 289,556.97
  4. Step 4: Simplify right side
    507,349.36x = 202,719,002,640.04
  5. Step 5: Solve for x
    x = 202,719,002,640.04/507,349.36
  6. Step 6: Final answer
    x = 399,564.91

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1.5x scale

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.