Home / 810,587.30-1,118,668.39-448,003.36

Finding the Fourth Proportional to 810,587.30, 1,118,668.39 and 448,003.36

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Solution

The fourth proportional to 810,587.30, 1,118,668.39 and 448,003.36 is: 618,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,587.30 : 1,118,668.39 = 448,003.36 : x
  2. Step 2: Convert to fraction form
    810,587.30/1,118,668.39 = 448,003.36/x
  3. Step 3: Cross multiply
    810,587.30x = 1,118,668.39 × 448,003.36
  4. Step 4: Simplify right side
    810,587.30x = 501,167,191,852.45
  5. Step 5: Solve for x
    x = 501,167,191,852.45/810,587.30
  6. Step 6: Final answer
    x = 618,276.64

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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.