Home / 487,860.12-673,267.82-301,632.21

Finding the Fourth Proportional to 487,860.12, 673,267.82 and 301,632.21

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Solution

The fourth proportional to 487,860.12, 673,267.82 and 301,632.21 is: 416,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,860.12 : 673,267.82 = 301,632.21 : x
  2. Step 2: Convert to fraction form
    487,860.12/673,267.82 = 301,632.21/x
  3. Step 3: Cross multiply
    487,860.12x = 673,267.82 × 301,632.21
  4. Step 4: Simplify right side
    487,860.12x = 203,079,258,960.32
  5. Step 5: Solve for x
    x = 203,079,258,960.32/487,860.12
  6. Step 6: Final answer
    x = 416,265.34

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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.