Home / 401,830.80-602,746.16-313,150.64

Finding the Fourth Proportional to 401,830.80, 602,746.16 and 313,150.64

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Solution

The fourth proportional to 401,830.80, 602,746.16 and 313,150.64 is: 469,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,830.80 : 602,746.16 = 313,150.64 : x
  2. Step 2: Convert to fraction form
    401,830.80/602,746.16 = 313,150.64/x
  3. Step 3: Cross multiply
    401,830.80x = 602,746.16 × 313,150.64
  4. Step 4: Simplify right side
    401,830.80x = 188,750,345,761.54
  5. Step 5: Solve for x
    x = 188,750,345,761.54/401,830.80
  6. Step 6: Final answer
    x = 469,725.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.