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Finding the Fourth Proportional to 392,448.80, 588,673.20 and 363,580.40

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Solution

The fourth proportional to 392,448.80, 588,673.20 and 363,580.40 is: 545,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,448.80 : 588,673.20 = 363,580.40 : x
  2. Step 2: Convert to fraction form
    392,448.80/588,673.20 = 363,580.40/x
  3. Step 3: Cross multiply
    392,448.80x = 588,673.20 × 363,580.40
  4. Step 4: Simplify right side
    392,448.80x = 214,030,037,525.28
  5. Step 5: Solve for x
    x = 214,030,037,525.28/392,448.80
  6. Step 6: Final answer
    x = 545,370.60

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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.