Home / 1,261,320.87-1,890,856.08-462,415.89

Finding the Fourth Proportional to 1,261,320.87, 1,890,856.08 and 462,415.89

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Solution

The fourth proportional to 1,261,320.87, 1,890,856.08 and 462,415.89 is: 693,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,320.87 : 1,890,856.08 = 462,415.89 : x
  2. Step 2: Convert to fraction form
    1,261,320.87/1,890,856.08 = 462,415.89/x
  3. Step 3: Cross multiply
    1,261,320.87x = 1,890,856.08 × 462,415.89
  4. Step 4: Simplify right side
    1,261,320.87x = 874,361,897,095.11
  5. Step 5: Solve for x
    x = 874,361,897,095.11/1,261,320.87
  6. Step 6: Final answer
    x = 693,211.31

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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.