Home / 781,051.61-1,171,156.12-354,354.59

Finding the Fourth Proportional to 781,051.61, 1,171,156.12 and 354,354.59

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Solution

The fourth proportional to 781,051.61, 1,171,156.12 and 354,354.59 is: 531,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,051.61 : 1,171,156.12 = 354,354.59 : x
  2. Step 2: Convert to fraction form
    781,051.61/1,171,156.12 = 354,354.59/x
  3. Step 3: Cross multiply
    781,051.61x = 1,171,156.12 × 354,354.59
  4. Step 4: Simplify right side
    781,051.61x = 415,004,546,728.59
  5. Step 5: Solve for x
    x = 415,004,546,728.59/781,051.61
  6. Step 6: Final answer
    x = 531,340.75

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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.