Home / 991,713.59-1,488,130.89-423,040.96

Finding the Fourth Proportional to 991,713.59, 1,488,130.89 and 423,040.96

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Solution

The fourth proportional to 991,713.59, 1,488,130.89 and 423,040.96 is: 634,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,713.59 : 1,488,130.89 = 423,040.96 : x
  2. Step 2: Convert to fraction form
    991,713.59/1,488,130.89 = 423,040.96/x
  3. Step 3: Cross multiply
    991,713.59x = 1,488,130.89 × 423,040.96
  4. Step 4: Simplify right side
    991,713.59x = 629,540,320,585.01
  5. Step 5: Solve for x
    x = 629,540,320,585.01/991,713.59
  6. Step 6: Final answer
    x = 634,800.54

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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.