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Finding the Fourth Proportional to 659,883.65, 910,636.22 and 358,077.65

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Solution

The fourth proportional to 659,883.65, 910,636.22 and 358,077.65 is: 494,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,883.65 : 910,636.22 = 358,077.65 : x
  2. Step 2: Convert to fraction form
    659,883.65/910,636.22 = 358,077.65/x
  3. Step 3: Cross multiply
    659,883.65x = 910,636.22 × 358,077.65
  4. Step 4: Simplify right side
    659,883.65x = 326,078,474,004.50
  5. Step 5: Solve for x
    x = 326,078,474,004.50/659,883.65
  6. Step 6: Final answer
    x = 494,145.41

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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.