Home / 993,159.45-1,489,739.18-328,311.45

Finding the Fourth Proportional to 993,159.45, 1,489,739.18 and 328,311.45

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Solution

The fourth proportional to 993,159.45, 1,489,739.18 and 328,311.45 is: 492,467.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,159.45 : 1,489,739.18 = 328,311.45 : x
  2. Step 2: Convert to fraction form
    993,159.45/1,489,739.18 = 328,311.45/x
  3. Step 3: Cross multiply
    993,159.45x = 1,489,739.18 × 328,311.45
  4. Step 4: Simplify right side
    993,159.45x = 489,098,428,666.05
  5. Step 5: Solve for x
    x = 489,098,428,666.05/993,159.45
  6. Step 6: Final answer
    x = 492,467.18

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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.