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Finding the Fourth Proportional to 646,613.18, 892,353.61 and 360,133.19

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Solution

The fourth proportional to 646,613.18, 892,353.61 and 360,133.19 is: 496,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,613.18 : 892,353.61 = 360,133.19 : x
  2. Step 2: Convert to fraction form
    646,613.18/892,353.61 = 360,133.19/x
  3. Step 3: Cross multiply
    646,613.18x = 892,353.61 × 360,133.19
  4. Step 4: Simplify right side
    646,613.18x = 321,366,151,512.04
  5. Step 5: Solve for x
    x = 321,366,151,512.04/646,613.18
  6. Step 6: Final answer
    x = 496,999.07

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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.