Home / 551,973.06-761,786.30-306,982.68

Finding the Fourth Proportional to 551,973.06, 761,786.30 and 306,982.68

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Solution

The fourth proportional to 551,973.06, 761,786.30 and 306,982.68 is: 423,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,973.06 : 761,786.30 = 306,982.68 : x
  2. Step 2: Convert to fraction form
    551,973.06/761,786.30 = 306,982.68/x
  3. Step 3: Cross multiply
    551,973.06x = 761,786.30 × 306,982.68
  4. Step 4: Simplify right side
    551,973.06x = 233,855,199,961.28
  5. Step 5: Solve for x
    x = 233,855,199,961.28/551,973.06
  6. Step 6: Final answer
    x = 423,671.40

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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.