Home / 432,341.09-649,495.79-312,766.87

Finding the Fourth Proportional to 432,341.09, 649,495.79 and 312,766.87

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Solution

The fourth proportional to 432,341.09, 649,495.79 and 312,766.87 is: 469,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,341.09 : 649,495.79 = 312,766.87 : x
  2. Step 2: Convert to fraction form
    432,341.09/649,495.79 = 312,766.87/x
  3. Step 3: Cross multiply
    432,341.09x = 649,495.79 × 312,766.87
  4. Step 4: Simplify right side
    432,341.09x = 203,140,762,069.00
  5. Step 5: Solve for x
    x = 203,140,762,069.00/432,341.09
  6. Step 6: Final answer
    x = 469,862.26

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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.