Home / 551,579.40-761,179.64-306,564.12

Finding the Fourth Proportional to 551,579.40, 761,179.64 and 306,564.12

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Solution

The fourth proportional to 551,579.40, 761,179.64 and 306,564.12 is: 423,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,579.40 : 761,179.64 = 306,564.12 : x
  2. Step 2: Convert to fraction form
    551,579.40/761,179.64 = 306,564.12/x
  3. Step 3: Cross multiply
    551,579.40x = 761,179.64 × 306,564.12
  4. Step 4: Simplify right side
    551,579.40x = 233,350,366,498.52
  5. Step 5: Solve for x
    x = 233,350,366,498.52/551,579.40
  6. Step 6: Final answer
    x = 423,058.52

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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.