Home / 691,574.05-1,037,485.77-312,673.11

Finding the Fourth Proportional to 691,574.05, 1,037,485.77 and 312,673.11

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Solution

The fourth proportional to 691,574.05, 1,037,485.77 and 312,673.11 is: 469,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,574.05 : 1,037,485.77 = 312,673.11 : x
  2. Step 2: Convert to fraction form
    691,574.05/1,037,485.77 = 312,673.11/x
  3. Step 3: Cross multiply
    691,574.05x = 1,037,485.77 × 312,673.11
  4. Step 4: Simplify right side
    691,574.05x = 324,393,903,059.41
  5. Step 5: Solve for x
    x = 324,393,903,059.41/691,574.05
  6. Step 6: Final answer
    x = 469,066.04

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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.