Home / 328,827.40-493,241.10-257,968.60

Finding the Fourth Proportional to 328,827.40, 493,241.10 and 257,968.60

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Solution

The fourth proportional to 328,827.40, 493,241.10 and 257,968.60 is: 386,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,827.40 : 493,241.10 = 257,968.60 : x
  2. Step 2: Convert to fraction form
    328,827.40/493,241.10 = 257,968.60/x
  3. Step 3: Cross multiply
    328,827.40x = 493,241.10 × 257,968.60
  4. Step 4: Simplify right side
    328,827.40x = 127,240,716,029.46
  5. Step 5: Solve for x
    x = 127,240,716,029.46/328,827.40
  6. Step 6: Final answer
    x = 386,952.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.