Home / 644,284.16-889,556.94-402,675.33

Finding the Fourth Proportional to 644,284.16, 889,556.94 and 402,675.33

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Solution

The fourth proportional to 644,284.16, 889,556.94 and 402,675.33 is: 555,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,284.16 : 889,556.94 = 402,675.33 : x
  2. Step 2: Convert to fraction form
    644,284.16/889,556.94 = 402,675.33/x
  3. Step 3: Cross multiply
    644,284.16x = 889,556.94 × 402,675.33
  4. Step 4: Simplify right side
    644,284.16x = 358,202,634,368.29
  5. Step 5: Solve for x
    x = 358,202,634,368.29/644,284.16
  6. Step 6: Final answer
    x = 555,969.95

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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.