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Finding the Fourth Proportional to 384,114.40, 575,480.40 and 328,818.40

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Solution

The fourth proportional to 384,114.40, 575,480.40 and 328,818.40 is: 492,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,114.40 : 575,480.40 = 328,818.40 : x
  2. Step 2: Convert to fraction form
    384,114.40/575,480.40 = 328,818.40/x
  3. Step 3: Cross multiply
    384,114.40x = 575,480.40 × 328,818.40
  4. Step 4: Simplify right side
    384,114.40x = 189,228,544,359.36
  5. Step 5: Solve for x
    x = 189,228,544,359.36/384,114.40
  6. Step 6: Final answer
    x = 492,635.90

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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.