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Finding the Fourth Proportional to 505,423.52, 697,192.08 and 326,575.52

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Solution

The fourth proportional to 505,423.52, 697,192.08 and 326,575.52 is: 450,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,423.52 : 697,192.08 = 326,575.52 : x
  2. Step 2: Convert to fraction form
    505,423.52/697,192.08 = 326,575.52/x
  3. Step 3: Cross multiply
    505,423.52x = 697,192.08 × 326,575.52
  4. Step 4: Simplify right side
    505,423.52x = 227,685,866,065.88
  5. Step 5: Solve for x
    x = 227,685,866,065.88/505,423.52
  6. Step 6: Final answer
    x = 450,485.30

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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.