Home / 691,770.36-1,037,970.80-355,047.44

Finding the Fourth Proportional to 691,770.36, 1,037,970.80 and 355,047.44

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Solution

The fourth proportional to 691,770.36, 1,037,970.80 and 355,047.44 is: 532,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,770.36 : 1,037,970.80 = 355,047.44 : x
  2. Step 2: Convert to fraction form
    691,770.36/1,037,970.80 = 355,047.44/x
  3. Step 3: Cross multiply
    691,770.36x = 1,037,970.80 × 355,047.44
  4. Step 4: Simplify right side
    691,770.36x = 368,528,868,369.66
  5. Step 5: Solve for x
    x = 368,528,868,369.66/691,770.36
  6. Step 6: Final answer
    x = 532,732.96

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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.