Home / 761,068.31-1,141,655.78-305,659.58

Finding the Fourth Proportional to 761,068.31, 1,141,655.78 and 305,659.58

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Solution

The fourth proportional to 761,068.31, 1,141,655.78 and 305,659.58 is: 458,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,068.31 : 1,141,655.78 = 305,659.58 : x
  2. Step 2: Convert to fraction form
    761,068.31/1,141,655.78 = 305,659.58/x
  3. Step 3: Cross multiply
    761,068.31x = 1,141,655.78 × 305,659.58
  4. Step 4: Simplify right side
    761,068.31x = 348,958,018,982.80
  5. Step 5: Solve for x
    x = 348,958,018,982.80/761,068.31
  6. Step 6: Final answer
    x = 458,510.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.