Home / 680,947.80-1,021,421.70-349,171.80

Finding the Fourth Proportional to 680,947.80, 1,021,421.70 and 349,171.80

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Solution

The fourth proportional to 680,947.80, 1,021,421.70 and 349,171.80 is: 523,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,947.80 : 1,021,421.70 = 349,171.80 : x
  2. Step 2: Convert to fraction form
    680,947.80/1,021,421.70 = 349,171.80/x
  3. Step 3: Cross multiply
    680,947.80x = 1,021,421.70 × 349,171.80
  4. Step 4: Simplify right side
    680,947.80x = 356,651,653,548.06
  5. Step 5: Solve for x
    x = 356,651,653,548.06/680,947.80
  6. Step 6: Final answer
    x = 523,757.70

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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.