Home / 1,308,405.40-1,960,604.95-880,355.74

Finding the Fourth Proportional to 1,308,405.40, 1,960,604.95 and 880,355.74

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Solution

The fourth proportional to 1,308,405.40, 1,960,604.95 and 880,355.74 is: 1,319,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,405.40 : 1,960,604.95 = 880,355.74 : x
  2. Step 2: Convert to fraction form
    1,308,405.40/1,960,604.95 = 880,355.74/x
  3. Step 3: Cross multiply
    1,308,405.40x = 1,960,604.95 × 880,355.74
  4. Step 4: Simplify right side
    1,308,405.40x = 1,726,029,819,829.31
  5. Step 5: Solve for x
    x = 1,726,029,819,829.31/1,308,405.40
  6. Step 6: Final answer
    x = 1,319,185.79

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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.