Home / 829,490.40-1,244,235.60-356,095.20

Finding the Fourth Proportional to 829,490.40, 1,244,235.60 and 356,095.20

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Solution

The fourth proportional to 829,490.40, 1,244,235.60 and 356,095.20 is: 534,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,490.40 : 1,244,235.60 = 356,095.20 : x
  2. Step 2: Convert to fraction form
    829,490.40/1,244,235.60 = 356,095.20/x
  3. Step 3: Cross multiply
    829,490.40x = 1,244,235.60 × 356,095.20
  4. Step 4: Simplify right side
    829,490.40x = 443,066,324,829.12
  5. Step 5: Solve for x
    x = 443,066,324,829.12/829,490.40
  6. Step 6: Final answer
    x = 534,142.80

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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.