Home / 761,057.02-1,141,638.77-305,648.28

Finding the Fourth Proportional to 761,057.02, 1,141,638.77 and 305,648.28

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Solution

The fourth proportional to 761,057.02, 1,141,638.77 and 305,648.28 is: 458,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,057.02 : 1,141,638.77 = 305,648.28 : x
  2. Step 2: Convert to fraction form
    761,057.02/1,141,638.77 = 305,648.28/x
  3. Step 3: Cross multiply
    761,057.02x = 1,141,638.77 × 305,648.28
  4. Step 4: Simplify right side
    761,057.02x = 348,939,926,431.82
  5. Step 5: Solve for x
    x = 348,939,926,431.82/761,057.02
  6. Step 6: Final answer
    x = 458,493.80

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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.