Home / 991,968.52-1,488,144.30-423,341.32

Finding the Fourth Proportional to 991,968.52, 1,488,144.30 and 423,341.32

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Solution

The fourth proportional to 991,968.52, 1,488,144.30 and 423,341.32 is: 635,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,968.52 : 1,488,144.30 = 423,341.32 : x
  2. Step 2: Convert to fraction form
    991,968.52/1,488,144.30 = 423,341.32/x
  3. Step 3: Cross multiply
    991,968.52x = 1,488,144.30 × 423,341.32
  4. Step 4: Simplify right side
    991,968.52x = 629,992,972,312.48
  5. Step 5: Solve for x
    x = 629,992,972,312.48/991,968.52
  6. Step 6: Final answer
    x = 635,093.71

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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.