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Finding the Fourth Proportional to 610,871.08, 916,663.83 and 255,855.36

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Solution

The fourth proportional to 610,871.08, 916,663.83 and 255,855.36 is: 383,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,871.08 : 916,663.83 = 255,855.36 : x
  2. Step 2: Convert to fraction form
    610,871.08/916,663.83 = 255,855.36/x
  3. Step 3: Cross multiply
    610,871.08x = 916,663.83 × 255,855.36
  4. Step 4: Simplify right side
    610,871.08x = 234,533,354,223.63
  5. Step 5: Solve for x
    x = 234,533,354,223.63/610,871.08
  6. Step 6: Final answer
    x = 383,932.65

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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.