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Finding the Fourth Proportional to 608,789.71, 840,010.36 and 336,806.80

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Solution

The fourth proportional to 608,789.71, 840,010.36 and 336,806.80 is: 464,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,789.71 : 840,010.36 = 336,806.80 : x
  2. Step 2: Convert to fraction form
    608,789.71/840,010.36 = 336,806.80/x
  3. Step 3: Cross multiply
    608,789.71x = 840,010.36 × 336,806.80
  4. Step 4: Simplify right side
    608,789.71x = 282,921,201,318.45
  5. Step 5: Solve for x
    x = 282,921,201,318.45/608,789.71
  6. Step 6: Final answer
    x = 464,727.31

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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.