Home / 697,415.40-1,046,123.10-198,714.60

Finding the Fourth Proportional to 697,415.40, 1,046,123.10 and 198,714.60

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Solution

The fourth proportional to 697,415.40, 1,046,123.10 and 198,714.60 is: 298,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,415.40 : 1,046,123.10 = 198,714.60 : x
  2. Step 2: Convert to fraction form
    697,415.40/1,046,123.10 = 198,714.60/x
  3. Step 3: Cross multiply
    697,415.40x = 1,046,123.10 × 198,714.60
  4. Step 4: Simplify right side
    697,415.40x = 207,879,933,367.26
  5. Step 5: Solve for x
    x = 207,879,933,367.26/697,415.40
  6. Step 6: Final answer
    x = 298,071.90

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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.