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Finding the Fourth Proportional to 608,693.60, 840,266.22 and 363,764.80

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Solution

The fourth proportional to 608,693.60, 840,266.22 and 363,764.80 is: 502,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,693.60 : 840,266.22 = 363,764.80 : x
  2. Step 2: Convert to fraction form
    608,693.60/840,266.22 = 363,764.80/x
  3. Step 3: Cross multiply
    608,693.60x = 840,266.22 × 363,764.80
  4. Step 4: Simplify right side
    608,693.60x = 305,659,273,465.06
  5. Step 5: Solve for x
    x = 305,659,273,465.06/608,693.60
  6. Step 6: Final answer
    x = 502,156.21

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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.