Home / 449,214.63-619,970.55-255,669.40

Finding the Fourth Proportional to 449,214.63, 619,970.55 and 255,669.40

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Solution

The fourth proportional to 449,214.63, 619,970.55 and 255,669.40 is: 352,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,214.63 : 619,970.55 = 255,669.40 : x
  2. Step 2: Convert to fraction form
    449,214.63/619,970.55 = 255,669.40/x
  3. Step 3: Cross multiply
    449,214.63x = 619,970.55 × 255,669.40
  4. Step 4: Simplify right side
    449,214.63x = 158,507,497,327.78
  5. Step 5: Solve for x
    x = 158,507,497,327.78/449,214.63
  6. Step 6: Final answer
    x = 352,854.71

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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.