Home / 673,867.16-929,922.78-387,384.68

Finding the Fourth Proportional to 673,867.16, 929,922.78 and 387,384.68

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Solution

The fourth proportional to 673,867.16, 929,922.78 and 387,384.68 is: 534,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,867.16 : 929,922.78 = 387,384.68 : x
  2. Step 2: Convert to fraction form
    673,867.16/929,922.78 = 387,384.68/x
  3. Step 3: Cross multiply
    673,867.16x = 929,922.78 × 387,384.68
  4. Step 4: Simplify right side
    673,867.16x = 360,237,838,555.01
  5. Step 5: Solve for x
    x = 360,237,838,555.01/673,867.16
  6. Step 6: Final answer
    x = 534,582.87

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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.