Home / 678,031.63-935,812.65-448,593.46

Finding the Fourth Proportional to 678,031.63, 935,812.65 and 448,593.46

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Solution

The fourth proportional to 678,031.63, 935,812.65 and 448,593.46 is: 619,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,031.63 : 935,812.65 = 448,593.46 : x
  2. Step 2: Convert to fraction form
    678,031.63/935,812.65 = 448,593.46/x
  3. Step 3: Cross multiply
    678,031.63x = 935,812.65 × 448,593.46
  4. Step 4: Simplify right side
    678,031.63x = 419,799,434,575.27
  5. Step 5: Solve for x
    x = 419,799,434,575.27/678,031.63
  6. Step 6: Final answer
    x = 619,144.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.