Home / 991,993.52-1,488,181.80-423,366.32

Finding the Fourth Proportional to 991,993.52, 1,488,181.80 and 423,366.32

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Solution

The fourth proportional to 991,993.52, 1,488,181.80 and 423,366.32 is: 635,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,993.52 : 1,488,181.80 = 423,366.32 : x
  2. Step 2: Convert to fraction form
    991,993.52/1,488,181.80 = 423,366.32/x
  3. Step 3: Cross multiply
    991,993.52x = 1,488,181.80 × 423,366.32
  4. Step 4: Simplify right side
    991,993.52x = 630,046,052,156.98
  5. Step 5: Solve for x
    x = 630,046,052,156.98/991,993.52
  6. Step 6: Final answer
    x = 635,131.22

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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.