Home / 689,956.96-952,159.12-379,868.98

Finding the Fourth Proportional to 689,956.96, 952,159.12 and 379,868.98

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Solution

The fourth proportional to 689,956.96, 952,159.12 and 379,868.98 is: 524,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,956.96 : 952,159.12 = 379,868.98 : x
  2. Step 2: Convert to fraction form
    689,956.96/952,159.12 = 379,868.98/x
  3. Step 3: Cross multiply
    689,956.96x = 952,159.12 × 379,868.98
  4. Step 4: Simplify right side
    689,956.96x = 361,695,713,712.10
  5. Step 5: Solve for x
    x = 361,695,713,712.10/689,956.96
  6. Step 6: Final answer
    x = 524,229.39

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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.