Home / 644,734.26-889,362.71-402,596.50

Finding the Fourth Proportional to 644,734.26, 889,362.71 and 402,596.50

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Solution

The fourth proportional to 644,734.26, 889,362.71 and 402,596.50 is: 555,351.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,734.26 : 889,362.71 = 402,596.50 : x
  2. Step 2: Convert to fraction form
    644,734.26/889,362.71 = 402,596.50/x
  3. Step 3: Cross multiply
    644,734.26x = 889,362.71 × 402,596.50
  4. Step 4: Simplify right side
    644,734.26x = 358,054,314,276.52
  5. Step 5: Solve for x
    x = 358,054,314,276.52/644,734.26
  6. Step 6: Final answer
    x = 555,351.77

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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.