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Finding the Fourth Proportional to 637,674.88, 955,856.20 and 282,856

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Solution

The fourth proportional to 637,674.88, 955,856.20 and 282,856 is: 423,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,674.88 : 955,856.20 = 282,856 : x
  2. Step 2: Convert to fraction form
    637,674.88/955,856.20 = 282,856/x
  3. Step 3: Cross multiply
    637,674.88x = 955,856.20 × 282,856
  4. Step 4: Simplify right side
    637,674.88x = 270,369,661,307.20
  5. Step 5: Solve for x
    x = 270,369,661,307.20/637,674.88
  6. Step 6: Final answer
    x = 423,992.96

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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.