Home / 1,027,187.34-1,539,945.89-428,594.37

Finding the Fourth Proportional to 1,027,187.34, 1,539,945.89 and 428,594.37

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Solution

The fourth proportional to 1,027,187.34, 1,539,945.89 and 428,594.37 is: 642,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,187.34 : 1,539,945.89 = 428,594.37 : x
  2. Step 2: Convert to fraction form
    1,027,187.34/1,539,945.89 = 428,594.37/x
  3. Step 3: Cross multiply
    1,027,187.34x = 1,539,945.89 × 428,594.37
  4. Step 4: Simplify right side
    1,027,187.34x = 660,012,138,558.64
  5. Step 5: Solve for x
    x = 660,012,138,558.64/1,027,187.34
  6. Step 6: Final answer
    x = 642,543.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.