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Finding the Fourth Proportional to 646,598.78, 892,333.84 and 360,118.87

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Solution

The fourth proportional to 646,598.78, 892,333.84 and 360,118.87 is: 496,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,598.78 : 892,333.84 = 360,118.87 : x
  2. Step 2: Convert to fraction form
    646,598.78/892,333.84 = 360,118.87/x
  3. Step 3: Cross multiply
    646,598.78x = 892,333.84 × 360,118.87
  4. Step 4: Simplify right side
    646,598.78x = 321,346,255,190.18
  5. Step 5: Solve for x
    x = 321,346,255,190.18/646,598.78
  6. Step 6: Final answer
    x = 496,979.37

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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.