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Finding the Fourth Proportional to 504,039.30, 757,185.35 and 421,095.30

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Solution

The fourth proportional to 504,039.30, 757,185.35 and 421,095.30 is: 632,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,039.30 : 757,185.35 = 421,095.30 : x
  2. Step 2: Convert to fraction form
    504,039.30/757,185.35 = 421,095.30/x
  3. Step 3: Cross multiply
    504,039.30x = 757,185.35 × 421,095.30
  4. Step 4: Simplify right side
    504,039.30x = 318,847,192,113.86
  5. Step 5: Solve for x
    x = 318,847,192,113.86/504,039.30
  6. Step 6: Final answer
    x = 632,583.99

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Similar ratio
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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.