Home / 761,797.71-1,142,532.54-312,077.61

Finding the Fourth Proportional to 761,797.71, 1,142,532.54 and 312,077.61

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Solution

The fourth proportional to 761,797.71, 1,142,532.54 and 312,077.61 is: 468,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,797.71 : 1,142,532.54 = 312,077.61 : x
  2. Step 2: Convert to fraction form
    761,797.71/1,142,532.54 = 312,077.61/x
  3. Step 3: Cross multiply
    761,797.71x = 1,142,532.54 × 312,077.61
  4. Step 4: Simplify right side
    761,797.71x = 356,558,824,430.43
  5. Step 5: Solve for x
    x = 356,558,824,430.43/761,797.71
  6. Step 6: Final answer
    x = 468,049.22

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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.