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Finding the Fourth Proportional to 505,770.40, 759,530.40 and 329,060.80

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Solution

The fourth proportional to 505,770.40, 759,530.40 and 329,060.80 is: 494,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,770.40 : 759,530.40 = 329,060.80 : x
  2. Step 2: Convert to fraction form
    505,770.40/759,530.40 = 329,060.80/x
  3. Step 3: Cross multiply
    505,770.40x = 759,530.40 × 329,060.80
  4. Step 4: Simplify right side
    505,770.40x = 249,931,681,048.32
  5. Step 5: Solve for x
    x = 249,931,681,048.32/505,770.40
  6. Step 6: Final answer
    x = 494,160.36

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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.