Home / 468,386.10-646,395.66-287,108.10

Finding the Fourth Proportional to 468,386.10, 646,395.66 and 287,108.10

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Solution

The fourth proportional to 468,386.10, 646,395.66 and 287,108.10 is: 396,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,386.10 : 646,395.66 = 287,108.10 : x
  2. Step 2: Convert to fraction form
    468,386.10/646,395.66 = 287,108.10/x
  3. Step 3: Cross multiply
    468,386.10x = 646,395.66 × 287,108.10
  4. Step 4: Simplify right side
    468,386.10x = 185,585,429,790.85
  5. Step 5: Solve for x
    x = 185,585,429,790.85/468,386.10
  6. Step 6: Final answer
    x = 396,223.18

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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.