Home / 884,312.70-1,326,145.05-285,431.10

Finding the Fourth Proportional to 884,312.70, 1,326,145.05 and 285,431.10

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Solution

The fourth proportional to 884,312.70, 1,326,145.05 and 285,431.10 is: 428,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,312.70 : 1,326,145.05 = 285,431.10 : x
  2. Step 2: Convert to fraction form
    884,312.70/1,326,145.05 = 285,431.10/x
  3. Step 3: Cross multiply
    884,312.70x = 1,326,145.05 × 285,431.10
  4. Step 4: Simplify right side
    884,312.70x = 378,523,040,381.06
  5. Step 5: Solve for x
    x = 378,523,040,381.06/884,312.70
  6. Step 6: Final answer
    x = 428,042.07

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Double scale
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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.