Home / 319,627.32-476,821.25-310,939.46

Finding the Fourth Proportional to 319,627.32, 476,821.25 and 310,939.46

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Solution

The fourth proportional to 319,627.32, 476,821.25 and 310,939.46 is: 463,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,627.32 : 476,821.25 = 310,939.46 : x
  2. Step 2: Convert to fraction form
    319,627.32/476,821.25 = 310,939.46/x
  3. Step 3: Cross multiply
    319,627.32x = 476,821.25 × 310,939.46
  4. Step 4: Simplify right side
    319,627.32x = 148,262,541,006.82
  5. Step 5: Solve for x
    x = 148,262,541,006.82/319,627.32
  6. Step 6: Final answer
    x = 463,860.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.