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Finding the Fourth Proportional to 646,533.80, 892,152.78 and 360,080.54

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Solution

The fourth proportional to 646,533.80, 892,152.78 and 360,080.54 is: 496,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,533.80 : 892,152.78 = 360,080.54 : x
  2. Step 2: Convert to fraction form
    646,533.80/892,152.78 = 360,080.54/x
  3. Step 3: Cross multiply
    646,533.80x = 892,152.78 × 360,080.54
  4. Step 4: Simplify right side
    646,533.80x = 321,246,854,344.86
  5. Step 5: Solve for x
    x = 321,246,854,344.86/646,533.80
  6. Step 6: Final answer
    x = 496,875.58

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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.