Home / 761,783.83-1,142,664.35-185,409.09

Finding the Fourth Proportional to 761,783.83, 1,142,664.35 and 185,409.09

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Solution

The fourth proportional to 761,783.83, 1,142,664.35 and 185,409.09 is: 278,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,783.83 : 1,142,664.35 = 185,409.09 : x
  2. Step 2: Convert to fraction form
    761,783.83/1,142,664.35 = 185,409.09/x
  3. Step 3: Cross multiply
    761,783.83x = 1,142,664.35 × 185,409.09
  4. Step 4: Simplify right side
    761,783.83x = 211,860,357,308.94
  5. Step 5: Solve for x
    x = 211,860,357,308.94/761,783.83
  6. Step 6: Final answer
    x = 278,110.86

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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.