Home / 825,018.32-1,138,577.90-462,442.28

Finding the Fourth Proportional to 825,018.32, 1,138,577.90 and 462,442.28

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Solution

The fourth proportional to 825,018.32, 1,138,577.90 and 462,442.28 is: 638,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,018.32 : 1,138,577.90 = 462,442.28 : x
  2. Step 2: Convert to fraction form
    825,018.32/1,138,577.90 = 462,442.28/x
  3. Step 3: Cross multiply
    825,018.32x = 1,138,577.90 × 462,442.28
  4. Step 4: Simplify right side
    825,018.32x = 526,526,554,629.75
  5. Step 5: Solve for x
    x = 526,526,554,629.75/825,018.32
  6. Step 6: Final answer
    x = 638,199.83

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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.