Home / 1,028,655.12-1,419,237-665,503.92

Finding the Fourth Proportional to 1,028,655.12, 1,419,237 and 665,503.92

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Solution

The fourth proportional to 1,028,655.12, 1,419,237 and 665,503.92 is: 918,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,655.12 : 1,419,237 = 665,503.92 : x
  2. Step 2: Convert to fraction form
    1,028,655.12/1,419,237 = 665,503.92/x
  3. Step 3: Cross multiply
    1,028,655.12x = 1,419,237 × 665,503.92
  4. Step 4: Simplify right side
    1,028,655.12x = 944,507,786,909.04
  5. Step 5: Solve for x
    x = 944,507,786,909.04/1,028,655.12
  6. Step 6: Final answer
    x = 918,196.75

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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.