Home / 987,209.47-1,480,814.21-239,255.47

Finding the Fourth Proportional to 987,209.47, 1,480,814.21 and 239,255.47

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Solution

The fourth proportional to 987,209.47, 1,480,814.21 and 239,255.47 is: 358,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,209.47 : 1,480,814.21 = 239,255.47 : x
  2. Step 2: Convert to fraction form
    987,209.47/1,480,814.21 = 239,255.47/x
  3. Step 3: Cross multiply
    987,209.47x = 1,480,814.21 × 239,255.47
  4. Step 4: Simplify right side
    987,209.47x = 354,292,899,796.23
  5. Step 5: Solve for x
    x = 354,292,899,796.23/987,209.47
  6. Step 6: Final answer
    x = 358,883.21

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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.