Home / 1,313,811.30-1,971,008.55-603,668.10

Finding the Fourth Proportional to 1,313,811.30, 1,971,008.55 and 603,668.10

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Solution

The fourth proportional to 1,313,811.30, 1,971,008.55 and 603,668.10 is: 905,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,811.30 : 1,971,008.55 = 603,668.10 : x
  2. Step 2: Convert to fraction form
    1,313,811.30/1,971,008.55 = 603,668.10/x
  3. Step 3: Cross multiply
    1,313,811.30x = 1,971,008.55 × 603,668.10
  4. Step 4: Simplify right side
    1,313,811.30x = 1,189,834,986,462.25
  5. Step 5: Solve for x
    x = 1,189,834,986,462.25/1,313,811.30
  6. Step 6: Final answer
    x = 905,636.13

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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.