Home / 900,150.97-1,242,196.38-512,989.44

Finding the Fourth Proportional to 900,150.97, 1,242,196.38 and 512,989.44

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Solution

The fourth proportional to 900,150.97, 1,242,196.38 and 512,989.44 is: 707,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,150.97 : 1,242,196.38 = 512,989.44 : x
  2. Step 2: Convert to fraction form
    900,150.97/1,242,196.38 = 512,989.44/x
  3. Step 3: Cross multiply
    900,150.97x = 1,242,196.38 × 512,989.44
  4. Step 4: Simplify right side
    900,150.97x = 637,233,625,346.23
  5. Step 5: Solve for x
    x = 637,233,625,346.23/900,150.97
  6. Step 6: Final answer
    x = 707,918.61

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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.