Home / 917,820.20-1,266,627.10-504,374.43

Finding the Fourth Proportional to 917,820.20, 1,266,627.10 and 504,374.43

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Solution

The fourth proportional to 917,820.20, 1,266,627.10 and 504,374.43 is: 696,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,820.20 : 1,266,627.10 = 504,374.43 : x
  2. Step 2: Convert to fraction form
    917,820.20/1,266,627.10 = 504,374.43/x
  3. Step 3: Cross multiply
    917,820.20x = 1,266,627.10 × 504,374.43
  4. Step 4: Simplify right side
    917,820.20x = 638,854,321,585.05
  5. Step 5: Solve for x
    x = 638,854,321,585.05/917,820.20
  6. Step 6: Final answer
    x = 696,056.07

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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.