Home / 1,432,586.98-2,148,140.97-421,577.65

Finding the Fourth Proportional to 1,432,586.98, 2,148,140.97 and 421,577.65

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Solution

The fourth proportional to 1,432,586.98, 2,148,140.97 and 421,577.65 is: 632,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,586.98 : 2,148,140.97 = 421,577.65 : x
  2. Step 2: Convert to fraction form
    1,432,586.98/2,148,140.97 = 421,577.65/x
  3. Step 3: Cross multiply
    1,432,586.98x = 2,148,140.97 × 421,577.65
  4. Step 4: Simplify right side
    1,432,586.98x = 905,608,222,001.32
  5. Step 5: Solve for x
    x = 905,608,222,001.32/1,432,586.98
  6. Step 6: Final answer
    x = 632,148.86

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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.