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Finding the Fourth Proportional to 536,001.81, 803,879.94 and 319,921.50

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Solution

The fourth proportional to 536,001.81, 803,879.94 and 319,921.50 is: 479,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,001.81 : 803,879.94 = 319,921.50 : x
  2. Step 2: Convert to fraction form
    536,001.81/803,879.94 = 319,921.50/x
  3. Step 3: Cross multiply
    536,001.81x = 803,879.94 × 319,921.50
  4. Step 4: Simplify right side
    536,001.81x = 257,178,476,224.71
  5. Step 5: Solve for x
    x = 257,178,476,224.71/536,001.81
  6. Step 6: Final answer
    x = 479,808.97

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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.