Home / 996,421.80-1,494,632.70-286,386.60

Finding the Fourth Proportional to 996,421.80, 1,494,632.70 and 286,386.60

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Solution

The fourth proportional to 996,421.80, 1,494,632.70 and 286,386.60 is: 429,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,421.80 : 1,494,632.70 = 286,386.60 : x
  2. Step 2: Convert to fraction form
    996,421.80/1,494,632.70 = 286,386.60/x
  3. Step 3: Cross multiply
    996,421.80x = 1,494,632.70 × 286,386.60
  4. Step 4: Simplify right side
    996,421.80x = 428,042,777,201.82
  5. Step 5: Solve for x
    x = 428,042,777,201.82/996,421.80
  6. Step 6: Final answer
    x = 429,579.90

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Double scale
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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.