Home / 686,549.00-947,467.58-380,605.92

Finding the Fourth Proportional to 686,549.00, 947,467.58 and 380,605.92

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Solution

The fourth proportional to 686,549.00, 947,467.58 and 380,605.92 is: 525,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,549.00 : 947,467.58 = 380,605.92 : x
  2. Step 2: Convert to fraction form
    686,549.00/947,467.58 = 380,605.92/x
  3. Step 3: Cross multiply
    686,549.00x = 947,467.58 × 380,605.92
  4. Step 4: Simplify right side
    686,549.00x = 360,611,769,004.56
  5. Step 5: Solve for x
    x = 360,611,769,004.56/686,549.00
  6. Step 6: Final answer
    x = 525,252.78

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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.