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Finding the Fourth Proportional to 646,800.04, 892,606.80 and 360,337.60

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Solution

The fourth proportional to 646,800.04, 892,606.80 and 360,337.60 is: 497,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,800.04 : 892,606.80 = 360,337.60 : x
  2. Step 2: Convert to fraction form
    646,800.04/892,606.80 = 360,337.60/x
  3. Step 3: Cross multiply
    646,800.04x = 892,606.80 × 360,337.60
  4. Step 4: Simplify right side
    646,800.04x = 321,639,792,055.68
  5. Step 5: Solve for x
    x = 321,639,792,055.68/646,800.04
  6. Step 6: Final answer
    x = 497,278.56

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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.