Home / 554,826.84-765,660.78-313,160.10

Finding the Fourth Proportional to 554,826.84, 765,660.78 and 313,160.10

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Solution

The fourth proportional to 554,826.84, 765,660.78 and 313,160.10 is: 432,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,826.84 : 765,660.78 = 313,160.10 : x
  2. Step 2: Convert to fraction form
    554,826.84/765,660.78 = 313,160.10/x
  3. Step 3: Cross multiply
    554,826.84x = 765,660.78 × 313,160.10
  4. Step 4: Simplify right side
    554,826.84x = 239,774,406,430.88
  5. Step 5: Solve for x
    x = 239,774,406,430.88/554,826.84
  6. Step 6: Final answer
    x = 432,160.79

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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.