Home / 686,167.53-946,941.30-380,243.22

Finding the Fourth Proportional to 686,167.53, 946,941.30 and 380,243.22

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Solution

The fourth proportional to 686,167.53, 946,941.30 and 380,243.22 is: 524,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,167.53 : 946,941.30 = 380,243.22 : x
  2. Step 2: Convert to fraction form
    686,167.53/946,941.30 = 380,243.22/x
  3. Step 3: Cross multiply
    686,167.53x = 946,941.30 × 380,243.22
  4. Step 4: Simplify right side
    686,167.53x = 360,068,002,427.06
  5. Step 5: Solve for x
    x = 360,068,002,427.06/686,167.53
  6. Step 6: Final answer
    x = 524,752.32

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Double scale
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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.