Home / 899,193.38-1,349,455.89-425,880.21

Finding the Fourth Proportional to 899,193.38, 1,349,455.89 and 425,880.21

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Solution

The fourth proportional to 899,193.38, 1,349,455.89 and 425,880.21 is: 639,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,193.38 : 1,349,455.89 = 425,880.21 : x
  2. Step 2: Convert to fraction form
    899,193.38/1,349,455.89 = 425,880.21/x
  3. Step 3: Cross multiply
    899,193.38x = 1,349,455.89 × 425,880.21
  4. Step 4: Simplify right side
    899,193.38x = 574,706,557,818.94
  5. Step 5: Solve for x
    x = 574,706,557,818.94/899,193.38
  6. Step 6: Final answer
    x = 639,135.67

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Double scale
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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.