Home / 689,245.22-951,017.90-402,709.95

Finding the Fourth Proportional to 689,245.22, 951,017.90 and 402,709.95

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Solution

The fourth proportional to 689,245.22, 951,017.90 and 402,709.95 is: 555,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,245.22 : 951,017.90 = 402,709.95 : x
  2. Step 2: Convert to fraction form
    689,245.22/951,017.90 = 402,709.95/x
  3. Step 3: Cross multiply
    689,245.22x = 951,017.90 × 402,709.95
  4. Step 4: Simplify right side
    689,245.22x = 382,984,368,944.56
  5. Step 5: Solve for x
    x = 382,984,368,944.56/689,245.22
  6. Step 6: Final answer
    x = 555,657.63

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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.