Home / 678,021.48-935,670.18-376,215.24

Finding the Fourth Proportional to 678,021.48, 935,670.18 and 376,215.24

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Solution

The fourth proportional to 678,021.48, 935,670.18 and 376,215.24 is: 519,177.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,021.48 : 935,670.18 = 376,215.24 : x
  2. Step 2: Convert to fraction form
    678,021.48/935,670.18 = 376,215.24/x
  3. Step 3: Cross multiply
    678,021.48x = 935,670.18 × 376,215.24
  4. Step 4: Simplify right side
    678,021.48x = 352,013,381,329.54
  5. Step 5: Solve for x
    x = 352,013,381,329.54/678,021.48
  6. Step 6: Final answer
    x = 519,177.33

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1.5x scale

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.