Home / 680,946.40-1,021,638.30-301,720.60

Finding the Fourth Proportional to 680,946.40, 1,021,638.30 and 301,720.60

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Solution

The fourth proportional to 680,946.40, 1,021,638.30 and 301,720.60 is: 452,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,946.40 : 1,021,638.30 = 301,720.60 : x
  2. Step 2: Convert to fraction form
    680,946.40/1,021,638.30 = 301,720.60/x
  3. Step 3: Cross multiply
    680,946.40x = 1,021,638.30 × 301,720.60
  4. Step 4: Simplify right side
    680,946.40x = 308,249,320,858.98
  5. Step 5: Solve for x
    x = 308,249,320,858.98/680,946.40
  6. Step 6: Final answer
    x = 452,677.80

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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.