Home / 872,428.60-1,203,953.46-490,458.52

Finding the Fourth Proportional to 872,428.60, 1,203,953.46 and 490,458.52

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Solution

The fourth proportional to 872,428.60, 1,203,953.46 and 490,458.52 is: 676,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,428.60 : 1,203,953.46 = 490,458.52 : x
  2. Step 2: Convert to fraction form
    872,428.60/1,203,953.46 = 490,458.52/x
  3. Step 3: Cross multiply
    872,428.60x = 1,203,953.46 × 490,458.52
  4. Step 4: Simplify right side
    872,428.60x = 590,489,232,140.48
  5. Step 5: Solve for x
    x = 590,489,232,140.48/872,428.60
  6. Step 6: Final answer
    x = 676,833.88

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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.