Home / 468,368.10-646,175.07-307,312.56

Finding the Fourth Proportional to 468,368.10, 646,175.07 and 307,312.56

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Solution

The fourth proportional to 468,368.10, 646,175.07 and 307,312.56 is: 423,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,368.10 : 646,175.07 = 307,312.56 : x
  2. Step 2: Convert to fraction form
    468,368.10/646,175.07 = 307,312.56/x
  3. Step 3: Cross multiply
    468,368.10x = 646,175.07 × 307,312.56
  4. Step 4: Simplify right side
    468,368.10x = 198,577,714,969.88
  5. Step 5: Solve for x
    x = 198,577,714,969.88/468,368.10
  6. Step 6: Final answer
    x = 423,977.88

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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.