Home / 991,928.40-1,487,892.60-637,634.40

Finding the Fourth Proportional to 991,928.40, 1,487,892.60 and 637,634.40

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Solution

The fourth proportional to 991,928.40, 1,487,892.60 and 637,634.40 is: 956,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,928.40 : 1,487,892.60 = 637,634.40 : x
  2. Step 2: Convert to fraction form
    991,928.40/1,487,892.60 = 637,634.40/x
  3. Step 3: Cross multiply
    991,928.40x = 1,487,892.60 × 637,634.40
  4. Step 4: Simplify right side
    991,928.40x = 948,731,505,265.44
  5. Step 5: Solve for x
    x = 948,731,505,265.44/991,928.40
  6. Step 6: Final answer
    x = 956,451.60

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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.