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Finding the Fourth Proportional to 554,971.77, 765,861.05 and 300,322.96

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Solution

The fourth proportional to 554,971.77, 765,861.05 and 300,322.96 is: 414,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,971.77 : 765,861.05 = 300,322.96 : x
  2. Step 2: Convert to fraction form
    554,971.77/765,861.05 = 300,322.96/x
  3. Step 3: Cross multiply
    554,971.77x = 765,861.05 × 300,322.96
  4. Step 4: Simplify right side
    554,971.77x = 230,005,657,484.71
  5. Step 5: Solve for x
    x = 230,005,657,484.71/554,971.77
  6. Step 6: Final answer
    x = 414,445.69

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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.