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Finding the Fourth Proportional to 529,723.63, 730,994.91 and 300,277.63

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Solution

The fourth proportional to 529,723.63, 730,994.91 and 300,277.63 is: 414,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,723.63 : 730,994.91 = 300,277.63 : x
  2. Step 2: Convert to fraction form
    529,723.63/730,994.91 = 300,277.63/x
  3. Step 3: Cross multiply
    529,723.63x = 730,994.91 × 300,277.63
  4. Step 4: Simplify right side
    529,723.63x = 219,501,415,461.89
  5. Step 5: Solve for x
    x = 219,501,415,461.89/529,723.63
  6. Step 6: Final answer
    x = 414,369.69

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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.