Home / 1,291,509.36-1,782,255.12-747,668.16

Finding the Fourth Proportional to 1,291,509.36, 1,782,255.12 and 747,668.16

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Solution

The fourth proportional to 1,291,509.36, 1,782,255.12 and 747,668.16 is: 1,031,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,509.36 : 1,782,255.12 = 747,668.16 : x
  2. Step 2: Convert to fraction form
    1,291,509.36/1,782,255.12 = 747,668.16/x
  3. Step 3: Cross multiply
    1,291,509.36x = 1,782,255.12 × 747,668.16
  4. Step 4: Simplify right side
    1,291,509.36x = 1,332,535,406,220.98
  5. Step 5: Solve for x
    x = 1,332,535,406,220.98/1,291,509.36
  6. Step 6: Final answer
    x = 1,031,765.97

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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.