Home / 609,931.36-841,749.64-368,272.72

Finding the Fourth Proportional to 609,931.36, 841,749.64 and 368,272.72

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Solution

The fourth proportional to 609,931.36, 841,749.64 and 368,272.72 is: 508,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,931.36 : 841,749.64 = 368,272.72 : x
  2. Step 2: Convert to fraction form
    609,931.36/841,749.64 = 368,272.72/x
  3. Step 3: Cross multiply
    609,931.36x = 841,749.64 × 368,272.72
  4. Step 4: Simplify right side
    609,931.36x = 309,993,429,481.82
  5. Step 5: Solve for x
    x = 309,993,429,481.82/609,931.36
  6. Step 6: Final answer
    x = 508,243.14

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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.