Home / 449,931.90-620,973.64-258,908.39

Finding the Fourth Proportional to 449,931.90, 620,973.64 and 258,908.39

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Solution

The fourth proportional to 449,931.90, 620,973.64 and 258,908.39 is: 357,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,931.90 : 620,973.64 = 258,908.39 : x
  2. Step 2: Convert to fraction form
    449,931.90/620,973.64 = 258,908.39/x
  3. Step 3: Cross multiply
    449,931.90x = 620,973.64 × 258,908.39
  4. Step 4: Simplify right side
    449,931.90x = 160,775,285,364.84
  5. Step 5: Solve for x
    x = 160,775,285,364.84/449,931.90
  6. Step 6: Final answer
    x = 357,332.49

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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.