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Finding the Fourth Proportional to 407,573.20, 611,359.80 and 302,597.20

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Solution

The fourth proportional to 407,573.20, 611,359.80 and 302,597.20 is: 453,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,573.20 : 611,359.80 = 302,597.20 : x
  2. Step 2: Convert to fraction form
    407,573.20/611,359.80 = 302,597.20/x
  3. Step 3: Cross multiply
    407,573.20x = 611,359.80 × 302,597.20
  4. Step 4: Simplify right side
    407,573.20x = 184,995,763,672.56
  5. Step 5: Solve for x
    x = 184,995,763,672.56/407,573.20
  6. Step 6: Final answer
    x = 453,895.80

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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.