Home / 1,393,615.40-2,090,423.10-447,081.80

Finding the Fourth Proportional to 1,393,615.40, 2,090,423.10 and 447,081.80

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Solution

The fourth proportional to 1,393,615.40, 2,090,423.10 and 447,081.80 is: 670,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,615.40 : 2,090,423.10 = 447,081.80 : x
  2. Step 2: Convert to fraction form
    1,393,615.40/2,090,423.10 = 447,081.80/x
  3. Step 3: Cross multiply
    1,393,615.40x = 2,090,423.10 × 447,081.80
  4. Step 4: Simplify right side
    1,393,615.40x = 934,590,122,309.58
  5. Step 5: Solve for x
    x = 934,590,122,309.58/1,393,615.40
  6. Step 6: Final answer
    x = 670,622.70

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Double scale
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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.