Home / 646,123.21-891,650.06-359,637.16

Finding the Fourth Proportional to 646,123.21, 891,650.06 and 359,637.16

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Solution

The fourth proportional to 646,123.21, 891,650.06 and 359,637.16 is: 496,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,123.21 : 891,650.06 = 359,637.16 : x
  2. Step 2: Convert to fraction form
    646,123.21/891,650.06 = 359,637.16/x
  3. Step 3: Cross multiply
    646,123.21x = 891,650.06 × 359,637.16
  4. Step 4: Simplify right side
    646,123.21x = 320,670,493,494.04
  5. Step 5: Solve for x
    x = 320,670,493,494.04/646,123.21
  6. Step 6: Final answer
    x = 496,299.29

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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.