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Finding the Fourth Proportional to 571,971.76, 789,342.12 and 345,573.52

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Solution

The fourth proportional to 571,971.76, 789,342.12 and 345,573.52 is: 476,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,971.76 : 789,342.12 = 345,573.52 : x
  2. Step 2: Convert to fraction form
    571,971.76/789,342.12 = 345,573.52/x
  3. Step 3: Cross multiply
    571,971.76x = 789,342.12 × 345,573.52
  4. Step 4: Simplify right side
    571,971.76x = 272,775,734,892.66
  5. Step 5: Solve for x
    x = 272,775,734,892.66/571,971.76
  6. Step 6: Final answer
    x = 476,904.20

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1.5x scale

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.