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Finding the Fourth Proportional to 576,653.70, 864,978.51 and 155,929.54

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Solution

The fourth proportional to 576,653.70, 864,978.51 and 155,929.54 is: 233,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,653.70 : 864,978.51 = 155,929.54 : x
  2. Step 2: Convert to fraction form
    576,653.70/864,978.51 = 155,929.54/x
  3. Step 3: Cross multiply
    576,653.70x = 864,978.51 × 155,929.54
  4. Step 4: Simplify right side
    576,653.70x = 134,875,701,174.19
  5. Step 5: Solve for x
    x = 134,875,701,174.19/576,653.70
  6. Step 6: Final answer
    x = 233,893.76

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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.