Home / 1,688,059.52-2,532,078.34-425,888.36

Finding the Fourth Proportional to 1,688,059.52, 2,532,078.34 and 425,888.36

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Solution

The fourth proportional to 1,688,059.52, 2,532,078.34 and 425,888.36 is: 638,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,059.52 : 2,532,078.34 = 425,888.36 : x
  2. Step 2: Convert to fraction form
    1,688,059.52/2,532,078.34 = 425,888.36/x
  3. Step 3: Cross multiply
    1,688,059.52x = 2,532,078.34 × 425,888.36
  4. Step 4: Simplify right side
    1,688,059.52x = 1,078,382,691,614.12
  5. Step 5: Solve for x
    x = 1,078,382,691,614.12/1,688,059.52
  6. Step 6: Final answer
    x = 638,829.78

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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.