Home / 637,098.79-879,151.02-378,961.51

Finding the Fourth Proportional to 637,098.79, 879,151.02 and 378,961.51

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Solution

The fourth proportional to 637,098.79, 879,151.02 and 378,961.51 is: 522,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,098.79 : 879,151.02 = 378,961.51 : x
  2. Step 2: Convert to fraction form
    637,098.79/879,151.02 = 378,961.51/x
  3. Step 3: Cross multiply
    637,098.79x = 879,151.02 × 378,961.51
  4. Step 4: Simplify right side
    637,098.79x = 333,164,398,057.24
  5. Step 5: Solve for x
    x = 333,164,398,057.24/637,098.79
  6. Step 6: Final answer
    x = 522,939.93

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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.