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Finding the Fourth Proportional to 659,393.90, 910,012.46 and 369,034.56

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Solution

The fourth proportional to 659,393.90, 910,012.46 and 369,034.56 is: 509,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,393.90 : 910,012.46 = 369,034.56 : x
  2. Step 2: Convert to fraction form
    659,393.90/910,012.46 = 369,034.56/x
  3. Step 3: Cross multiply
    659,393.90x = 910,012.46 × 369,034.56
  4. Step 4: Simplify right side
    659,393.90x = 335,826,047,770.62
  5. Step 5: Solve for x
    x = 335,826,047,770.62/659,393.90
  6. Step 6: Final answer
    x = 509,295.05

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1.5x scale

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.