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Finding the Fourth Proportional to 646,543.68, 892,210.32 and 360,057.84

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Solution

The fourth proportional to 646,543.68, 892,210.32 and 360,057.84 is: 496,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,543.68 : 892,210.32 = 360,057.84 : x
  2. Step 2: Convert to fraction form
    646,543.68/892,210.32 = 360,057.84/x
  3. Step 3: Cross multiply
    646,543.68x = 892,210.32 × 360,057.84
  4. Step 4: Simplify right side
    646,543.68x = 321,247,320,644.91
  5. Step 5: Solve for x
    x = 321,247,320,644.91/646,543.68
  6. Step 6: Final answer
    x = 496,868.70

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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.