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Finding the Fourth Proportional to 554,576.86, 765,316.57 and 299,928.04

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Solution

The fourth proportional to 554,576.86, 765,316.57 and 299,928.04 is: 413,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,576.86 : 765,316.57 = 299,928.04 : x
  2. Step 2: Convert to fraction form
    554,576.86/765,316.57 = 299,928.04/x
  3. Step 3: Cross multiply
    554,576.86x = 765,316.57 × 299,928.04
  4. Step 4: Simplify right side
    554,576.86x = 229,539,900,461.42
  5. Step 5: Solve for x
    x = 229,539,900,461.42/554,576.86
  6. Step 6: Final answer
    x = 413,900.97

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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.