Home / 683,390.40-1,025,085.60-447,460.80

Finding the Fourth Proportional to 683,390.40, 1,025,085.60 and 447,460.80

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Solution

The fourth proportional to 683,390.40, 1,025,085.60 and 447,460.80 is: 671,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,390.40 : 1,025,085.60 = 447,460.80 : x
  2. Step 2: Convert to fraction form
    683,390.40/1,025,085.60 = 447,460.80/x
  3. Step 3: Cross multiply
    683,390.40x = 1,025,085.60 × 447,460.80
  4. Step 4: Simplify right side
    683,390.40x = 458,685,622,644.48
  5. Step 5: Solve for x
    x = 458,685,622,644.48/683,390.40
  6. Step 6: Final answer
    x = 671,191.20

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Similar ratio
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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.