Home / 825,200.68-1,138,781.02-462,639.82

Finding the Fourth Proportional to 825,200.68, 1,138,781.02 and 462,639.82

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Solution

The fourth proportional to 825,200.68, 1,138,781.02 and 462,639.82 is: 638,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,200.68 : 1,138,781.02 = 462,639.82 : x
  2. Step 2: Convert to fraction form
    825,200.68/1,138,781.02 = 462,639.82/x
  3. Step 3: Cross multiply
    825,200.68x = 1,138,781.02 × 462,639.82
  4. Step 4: Simplify right side
    825,200.68x = 526,845,446,112.22
  5. Step 5: Solve for x
    x = 526,845,446,112.22/825,200.68
  6. Step 6: Final answer
    x = 638,445.24

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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.