Home / 761,295.21-1,142,074.58-255,905.61

Finding the Fourth Proportional to 761,295.21, 1,142,074.58 and 255,905.61

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Solution

The fourth proportional to 761,295.21, 1,142,074.58 and 255,905.61 is: 383,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,295.21 : 1,142,074.58 = 255,905.61 : x
  2. Step 2: Convert to fraction form
    761,295.21/1,142,074.58 = 255,905.61/x
  3. Step 3: Cross multiply
    761,295.21x = 1,142,074.58 × 255,905.61
  4. Step 4: Simplify right side
    761,295.21x = 292,263,290,780.87
  5. Step 5: Solve for x
    x = 292,263,290,780.87/761,295.21
  6. Step 6: Final answer
    x = 383,902.71

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Double scale
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1.5x scale

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.