Home / 761,529.34-1,142,285.80-312,150.04

Finding the Fourth Proportional to 761,529.34, 1,142,285.80 and 312,150.04

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Solution

The fourth proportional to 761,529.34, 1,142,285.80 and 312,150.04 is: 468,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,529.34 : 1,142,285.80 = 312,150.04 : x
  2. Step 2: Convert to fraction form
    761,529.34/1,142,285.80 = 312,150.04/x
  3. Step 3: Cross multiply
    761,529.34x = 1,142,285.80 × 312,150.04
  4. Step 4: Simplify right side
    761,529.34x = 356,564,558,161.43
  5. Step 5: Solve for x
    x = 356,564,558,161.43/761,529.34
  6. Step 6: Final answer
    x = 468,221.69

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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.