Home / 691,999.80-1,037,999.70-629,998.35

Finding the Fourth Proportional to 691,999.80, 1,037,999.70 and 629,998.35

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Solution

The fourth proportional to 691,999.80, 1,037,999.70 and 629,998.35 is: 944,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,999.80 : 1,037,999.70 = 629,998.35 : x
  2. Step 2: Convert to fraction form
    691,999.80/1,037,999.70 = 629,998.35/x
  3. Step 3: Cross multiply
    691,999.80x = 1,037,999.70 × 629,998.35
  4. Step 4: Simplify right side
    691,999.80x = 653,938,098,300.50
  5. Step 5: Solve for x
    x = 653,938,098,300.50/691,999.80
  6. Step 6: Final answer
    x = 944,997.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.