Home / 380,476.30-570,739.05-127,746.58

Finding the Fourth Proportional to 380,476.30, 570,739.05 and 127,746.58

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Solution

The fourth proportional to 380,476.30, 570,739.05 and 127,746.58 is: 191,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,476.30 : 570,739.05 = 127,746.58 : x
  2. Step 2: Convert to fraction form
    380,476.30/570,739.05 = 127,746.58/x
  3. Step 3: Cross multiply
    380,476.30x = 570,739.05 × 127,746.58
  4. Step 4: Simplify right side
    380,476.30x = 72,909,961,709.95
  5. Step 5: Solve for x
    x = 72,909,961,709.95/380,476.30
  6. Step 6: Final answer
    x = 191,628.13

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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.