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Finding the Fourth Proportional to 487,970.92, 673,420.90 and 270,179.58

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Solution

The fourth proportional to 487,970.92, 673,420.90 and 270,179.58 is: 372,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,970.92 : 673,420.90 = 270,179.58 : x
  2. Step 2: Convert to fraction form
    487,970.92/673,420.90 = 270,179.58/x
  3. Step 3: Cross multiply
    487,970.92x = 673,420.90 × 270,179.58
  4. Step 4: Simplify right side
    487,970.92x = 181,944,572,979.65
  5. Step 5: Solve for x
    x = 181,944,572,979.65/487,970.92
  6. Step 6: Final answer
    x = 372,859.46

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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.