Home / 987,384.26-1,481,076.40-239,430.26

Finding the Fourth Proportional to 987,384.26, 1,481,076.40 and 239,430.26

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Solution

The fourth proportional to 987,384.26, 1,481,076.40 and 239,430.26 is: 359,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,384.26 : 1,481,076.40 = 239,430.26 : x
  2. Step 2: Convert to fraction form
    987,384.26/1,481,076.40 = 239,430.26/x
  3. Step 3: Cross multiply
    987,384.26x = 1,481,076.40 × 239,430.26
  4. Step 4: Simplify right side
    987,384.26x = 354,614,507,531.86
  5. Step 5: Solve for x
    x = 354,614,507,531.86/987,384.26
  6. Step 6: Final answer
    x = 359,145.39

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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.