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Finding the Fourth Proportional to 6,398,887.87, 8,830,496.49 and 3,498,278.88

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Solution

The fourth proportional to 6,398,887.87, 8,830,496.49 and 3,498,278.88 is: 4,827,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,887.87 : 8,830,496.49 = 3,498,278.88 : x
  2. Step 2: Convert to fraction form
    6,398,887.87/8,830,496.49 = 3,498,278.88/x
  3. Step 3: Cross multiply
    6,398,887.87x = 8,830,496.49 × 3,498,278.88
  4. Step 4: Simplify right side
    6,398,887.87x = 30,891,539,348,804.89
  5. Step 5: Solve for x
    x = 30,891,539,348,804.89/6,398,887.87
  6. Step 6: Final answer
    x = 4,827,641.93

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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.