Home / 677,650.34-1,015,969.86-407,715.21

Finding the Fourth Proportional to 677,650.34, 1,015,969.86 and 407,715.21

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Solution

The fourth proportional to 677,650.34, 1,015,969.86 and 407,715.21 is: 611,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,650.34 : 1,015,969.86 = 407,715.21 : x
  2. Step 2: Convert to fraction form
    677,650.34/1,015,969.86 = 407,715.21/x
  3. Step 3: Cross multiply
    677,650.34x = 1,015,969.86 × 407,715.21
  4. Step 4: Simplify right side
    677,650.34x = 414,226,364,823.57
  5. Step 5: Solve for x
    x = 414,226,364,823.57/677,650.34
  6. Step 6: Final answer
    x = 611,268.59

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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.