Home / 1,270,503.28-1,905,350.30-417,376.90

Finding the Fourth Proportional to 1,270,503.28, 1,905,350.30 and 417,376.90

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Solution

The fourth proportional to 1,270,503.28, 1,905,350.30 and 417,376.90 is: 625,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,503.28 : 1,905,350.30 = 417,376.90 : x
  2. Step 2: Convert to fraction form
    1,270,503.28/1,905,350.30 = 417,376.90/x
  3. Step 3: Cross multiply
    1,270,503.28x = 1,905,350.30 × 417,376.90
  4. Step 4: Simplify right side
    1,270,503.28x = 795,249,190,014.43
  5. Step 5: Solve for x
    x = 795,249,190,014.43/1,270,503.28
  6. Step 6: Final answer
    x = 625,932.42

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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.