Home / 816,780.23-1,126,991.54-477,182.87

Finding the Fourth Proportional to 816,780.23, 1,126,991.54 and 477,182.87

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Solution

The fourth proportional to 816,780.23, 1,126,991.54 and 477,182.87 is: 658,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,780.23 : 1,126,991.54 = 477,182.87 : x
  2. Step 2: Convert to fraction form
    816,780.23/1,126,991.54 = 477,182.87/x
  3. Step 3: Cross multiply
    816,780.23x = 1,126,991.54 × 477,182.87
  4. Step 4: Simplify right side
    816,780.23x = 537,781,057,522.92
  5. Step 5: Solve for x
    x = 537,781,057,522.92/816,780.23
  6. Step 6: Final answer
    x = 658,415.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.