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Finding the Fourth Proportional to 6,409,500.88, 8,845,320 and 3,508,890.88

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Solution

The fourth proportional to 6,409,500.88, 8,845,320 and 3,508,890.88 is: 4,842,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,500.88 : 8,845,320 = 3,508,890.88 : x
  2. Step 2: Convert to fraction form
    6,409,500.88/8,845,320 = 3,508,890.88/x
  3. Step 3: Cross multiply
    6,409,500.88x = 8,845,320 × 3,508,890.88
  4. Step 4: Simplify right side
    6,409,500.88x = 31,037,262,678,681.60
  5. Step 5: Solve for x
    x = 31,037,262,678,681.60/6,409,500.88
  6. Step 6: Final answer
    x = 4,842,383.71

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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.