Home / 648,770.66-972,837.74-378,966.55

Finding the Fourth Proportional to 648,770.66, 972,837.74 and 378,966.55

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Solution

The fourth proportional to 648,770.66, 972,837.74 and 378,966.55 is: 568,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,770.66 : 972,837.74 = 378,966.55 : x
  2. Step 2: Convert to fraction form
    648,770.66/972,837.74 = 378,966.55/x
  3. Step 3: Cross multiply
    648,770.66x = 972,837.74 × 378,966.55
  4. Step 4: Simplify right side
    648,770.66x = 368,672,962,376.99
  5. Step 5: Solve for x
    x = 368,672,962,376.99/648,770.66
  6. Step 6: Final answer
    x = 568,263.92

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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.