Home / 461,905.16-693,495.18-319,400.84

Finding the Fourth Proportional to 461,905.16, 693,495.18 and 319,400.84

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Solution

The fourth proportional to 461,905.16, 693,495.18 and 319,400.84 is: 479,542.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,905.16 : 693,495.18 = 319,400.84 : x
  2. Step 2: Convert to fraction form
    461,905.16/693,495.18 = 319,400.84/x
  3. Step 3: Cross multiply
    461,905.16x = 693,495.18 × 319,400.84
  4. Step 4: Simplify right side
    461,905.16x = 221,502,943,027.95
  5. Step 5: Solve for x
    x = 221,502,943,027.95/461,905.16
  6. Step 6: Final answer
    x = 479,542.04

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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.