Home / 642,299.16-964,333.26-326,975.88

Finding the Fourth Proportional to 642,299.16, 964,333.26 and 326,975.88

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Solution

The fourth proportional to 642,299.16, 964,333.26 and 326,975.88 is: 490,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,299.16 : 964,333.26 = 326,975.88 : x
  2. Step 2: Convert to fraction form
    642,299.16/964,333.26 = 326,975.88/x
  3. Step 3: Cross multiply
    642,299.16x = 964,333.26 × 326,975.88
  4. Step 4: Simplify right side
    642,299.16x = 315,313,716,301.77
  5. Step 5: Solve for x
    x = 315,313,716,301.77/642,299.16
  6. Step 6: Final answer
    x = 490,914.10

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1.5x scale

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.