Home / 859,340.72-1,185,849.96-477,390.80

Finding the Fourth Proportional to 859,340.72, 1,185,849.96 and 477,390.80

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Solution

The fourth proportional to 859,340.72, 1,185,849.96 and 477,390.80 is: 658,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,340.72 : 1,185,849.96 = 477,390.80 : x
  2. Step 2: Convert to fraction form
    859,340.72/1,185,849.96 = 477,390.80/x
  3. Step 3: Cross multiply
    859,340.72x = 1,185,849.96 × 477,390.80
  4. Step 4: Simplify right side
    859,340.72x = 566,113,861,084.37
  5. Step 5: Solve for x
    x = 566,113,861,084.37/859,340.72
  6. Step 6: Final answer
    x = 658,776.95

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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.