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Finding the Fourth Proportional to 608,711.30, 840,290.63 and 363,782.46

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Solution

The fourth proportional to 608,711.30, 840,290.63 and 363,782.46 is: 502,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,711.30 : 840,290.63 = 363,782.46 : x
  2. Step 2: Convert to fraction form
    608,711.30/840,290.63 = 363,782.46/x
  3. Step 3: Cross multiply
    608,711.30x = 840,290.63 × 363,782.46
  4. Step 4: Simplify right side
    608,711.30x = 305,682,992,496.35
  5. Step 5: Solve for x
    x = 305,682,992,496.35/608,711.30
  6. Step 6: Final answer
    x = 502,180.58

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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.