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Finding the Fourth Proportional to 659,708.25, 910,483.14 and 369,430.33

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Solution

The fourth proportional to 659,708.25, 910,483.14 and 369,430.33 is: 509,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,708.25 : 910,483.14 = 369,430.33 : x
  2. Step 2: Convert to fraction form
    659,708.25/910,483.14 = 369,430.33/x
  3. Step 3: Cross multiply
    659,708.25x = 910,483.14 × 369,430.33
  4. Step 4: Simplify right side
    659,708.25x = 336,360,086,869.64
  5. Step 5: Solve for x
    x = 336,360,086,869.64/659,708.25
  6. Step 6: Final answer
    x = 509,861.88

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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.