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Finding the Fourth Proportional to 646,275.80, 968,739.83 and 361,548.90

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Solution

The fourth proportional to 646,275.80, 968,739.83 and 361,548.90 is: 541,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,275.80 : 968,739.83 = 361,548.90 : x
  2. Step 2: Convert to fraction form
    646,275.80/968,739.83 = 361,548.90/x
  3. Step 3: Cross multiply
    646,275.80x = 968,739.83 × 361,548.90
  4. Step 4: Simplify right side
    646,275.80x = 350,246,819,922.69
  5. Step 5: Solve for x
    x = 350,246,819,922.69/646,275.80
  6. Step 6: Final answer
    x = 541,946.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.