Home / 487,922.92-673,746.90-306,693.20

Finding the Fourth Proportional to 487,922.92, 673,746.90 and 306,693.20

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Solution

The fourth proportional to 487,922.92, 673,746.90 and 306,693.20 is: 423,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,922.92 : 673,746.90 = 306,693.20 : x
  2. Step 2: Convert to fraction form
    487,922.92/673,746.90 = 306,693.20/x
  3. Step 3: Cross multiply
    487,922.92x = 673,746.90 × 306,693.20
  4. Step 4: Simplify right side
    487,922.92x = 206,633,592,751.08
  5. Step 5: Solve for x
    x = 206,633,592,751.08/487,922.92
  6. Step 6: Final answer
    x = 423,496.38

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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.