Home / 1,421,455.50-2,132,552.63-424,183.50

Finding the Fourth Proportional to 1,421,455.50, 2,132,552.63 and 424,183.50

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Solution

The fourth proportional to 1,421,455.50, 2,132,552.63 and 424,183.50 is: 636,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,455.50 : 2,132,552.63 = 424,183.50 : x
  2. Step 2: Convert to fraction form
    1,421,455.50/2,132,552.63 = 424,183.50/x
  3. Step 3: Cross multiply
    1,421,455.50x = 2,132,552.63 × 424,183.50
  4. Step 4: Simplify right side
    1,421,455.50x = 904,593,638,527.61
  5. Step 5: Solve for x
    x = 904,593,638,527.61/1,421,455.50
  6. Step 6: Final answer
    x = 636,385.48

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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.