Home / 644,814.22-889,824.93-369,162.85

Finding the Fourth Proportional to 644,814.22, 889,824.93 and 369,162.85

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Solution

The fourth proportional to 644,814.22, 889,824.93 and 369,162.85 is: 509,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,814.22 : 889,824.93 = 369,162.85 : x
  2. Step 2: Convert to fraction form
    644,814.22/889,824.93 = 369,162.85/x
  3. Step 3: Cross multiply
    644,814.22x = 889,824.93 × 369,162.85
  4. Step 4: Simplify right side
    644,814.22x = 328,490,307,159.85
  5. Step 5: Solve for x
    x = 328,490,307,159.85/644,814.22
  6. Step 6: Final answer
    x = 509,434.03

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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.