Home / 644,822.22-889,835.94-369,170.85

Finding the Fourth Proportional to 644,822.22, 889,835.94 and 369,170.85

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Solution

The fourth proportional to 644,822.22, 889,835.94 and 369,170.85 is: 509,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,822.22 : 889,835.94 = 369,170.85 : x
  2. Step 2: Convert to fraction form
    644,822.22/889,835.94 = 369,170.85/x
  3. Step 3: Cross multiply
    644,822.22x = 889,835.94 × 369,170.85
  4. Step 4: Simplify right side
    644,822.22x = 328,501,490,330.35
  5. Step 5: Solve for x
    x = 328,501,490,330.35/644,822.22
  6. Step 6: Final answer
    x = 509,445.05

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1.5x scale

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.