Home / 1,432,531.20-2,148,563.18-421,416.65

Finding the Fourth Proportional to 1,432,531.20, 2,148,563.18 and 421,416.65

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Solution

The fourth proportional to 1,432,531.20, 2,148,563.18 and 421,416.65 is: 632,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,531.20 : 2,148,563.18 = 421,416.65 : x
  2. Step 2: Convert to fraction form
    1,432,531.20/2,148,563.18 = 421,416.65/x
  3. Step 3: Cross multiply
    1,432,531.20x = 2,148,563.18 × 421,416.65
  4. Step 4: Simplify right side
    1,432,531.20x = 905,440,297,628.95
  5. Step 5: Solve for x
    x = 905,440,297,628.95/1,432,531.20
  6. Step 6: Final answer
    x = 632,056.25

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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.