Home / 746,076.93-1,118,173.16-319,105.28

Finding the Fourth Proportional to 746,076.93, 1,118,173.16 and 319,105.28

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Solution

The fourth proportional to 746,076.93, 1,118,173.16 and 319,105.28 is: 478,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,076.93 : 1,118,173.16 = 319,105.28 : x
  2. Step 2: Convert to fraction form
    746,076.93/1,118,173.16 = 319,105.28/x
  3. Step 3: Cross multiply
    746,076.93x = 1,118,173.16 × 319,105.28
  4. Step 4: Simplify right side
    746,076.93x = 356,814,952,123.89
  5. Step 5: Solve for x
    x = 356,814,952,123.89/746,076.93
  6. Step 6: Final answer
    x = 478,254.91

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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.