Home / 825,362.40-1,138,921.38-462,703.08

Finding the Fourth Proportional to 825,362.40, 1,138,921.38 and 462,703.08

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Solution

The fourth proportional to 825,362.40, 1,138,921.38 and 462,703.08 is: 638,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,362.40 : 1,138,921.38 = 462,703.08 : x
  2. Step 2: Convert to fraction form
    825,362.40/1,138,921.38 = 462,703.08/x
  3. Step 3: Cross multiply
    825,362.40x = 1,138,921.38 × 462,703.08
  4. Step 4: Simplify right side
    825,362.40x = 526,982,430,403.85
  5. Step 5: Solve for x
    x = 526,982,430,403.85/825,362.40
  6. Step 6: Final answer
    x = 638,486.11

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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.