Home / 739,469.42-1,020,468.48-399,937.67

Finding the Fourth Proportional to 739,469.42, 1,020,468.48 and 399,937.67

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Solution

The fourth proportional to 739,469.42, 1,020,468.48 and 399,937.67 is: 551,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,469.42 : 1,020,468.48 = 399,937.67 : x
  2. Step 2: Convert to fraction form
    739,469.42/1,020,468.48 = 399,937.67/x
  3. Step 3: Cross multiply
    739,469.42x = 1,020,468.48 × 399,937.67
  4. Step 4: Simplify right side
    739,469.42x = 408,123,786,199.64
  5. Step 5: Solve for x
    x = 408,123,786,199.64/739,469.42
  6. Step 6: Final answer
    x = 551,914.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.