Home / 432,426.74-648,328.25-263,907.45

Finding the Fourth Proportional to 432,426.74, 648,328.25 and 263,907.45

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Solution

The fourth proportional to 432,426.74, 648,328.25 and 263,907.45 is: 395,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,426.74 : 648,328.25 = 263,907.45 : x
  2. Step 2: Convert to fraction form
    432,426.74/648,328.25 = 263,907.45/x
  3. Step 3: Cross multiply
    432,426.74x = 648,328.25 × 263,907.45
  4. Step 4: Simplify right side
    432,426.74x = 171,098,655,880.23
  5. Step 5: Solve for x
    x = 171,098,655,880.23/432,426.74
  6. Step 6: Final answer
    x = 395,670.85

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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.