Home / 461,628.09-637,044.35-257,667.21

Finding the Fourth Proportional to 461,628.09, 637,044.35 and 257,667.21

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Solution

The fourth proportional to 461,628.09, 637,044.35 and 257,667.21 is: 355,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,628.09 : 637,044.35 = 257,667.21 : x
  2. Step 2: Convert to fraction form
    461,628.09/637,044.35 = 257,667.21/x
  3. Step 3: Cross multiply
    461,628.09x = 637,044.35 × 257,667.21
  4. Step 4: Simplify right side
    461,628.09x = 164,145,439,022.43
  5. Step 5: Solve for x
    x = 164,145,439,022.43/461,628.09
  6. Step 6: Final answer
    x = 355,579.40

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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.