Home / 761,068.54-1,141,656.12-305,659.81

Finding the Fourth Proportional to 761,068.54, 1,141,656.12 and 305,659.81

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Solution

The fourth proportional to 761,068.54, 1,141,656.12 and 305,659.81 is: 458,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,068.54 : 1,141,656.12 = 305,659.81 : x
  2. Step 2: Convert to fraction form
    761,068.54/1,141,656.12 = 305,659.81/x
  3. Step 3: Cross multiply
    761,068.54x = 1,141,656.12 × 305,659.81
  4. Step 4: Simplify right side
    761,068.54x = 348,958,394,151.61
  5. Step 5: Solve for x
    x = 348,958,394,151.61/761,068.54
  6. Step 6: Final answer
    x = 458,511.13

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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.