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Finding the Fourth Proportional to 646,591.69, 892,324.10 and 360,111.77

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Solution

The fourth proportional to 646,591.69, 892,324.10 and 360,111.77 is: 496,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,591.69 : 892,324.10 = 360,111.77 : x
  2. Step 2: Convert to fraction form
    646,591.69/892,324.10 = 360,111.77/x
  3. Step 3: Cross multiply
    646,591.69x = 892,324.10 × 360,111.77
  4. Step 4: Simplify right side
    646,591.69x = 321,336,409,264.10
  5. Step 5: Solve for x
    x = 321,336,409,264.10/646,591.69
  6. Step 6: Final answer
    x = 496,969.60

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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.