Home / 991,754.83-1,487,580.30-272,043.81

Finding the Fourth Proportional to 991,754.83, 1,487,580.30 and 272,043.81

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Solution

The fourth proportional to 991,754.83, 1,487,580.30 and 272,043.81 is: 408,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,754.83 : 1,487,580.30 = 272,043.81 : x
  2. Step 2: Convert to fraction form
    991,754.83/1,487,580.30 = 272,043.81/x
  3. Step 3: Cross multiply
    991,754.83x = 1,487,580.30 × 272,043.81
  4. Step 4: Simplify right side
    991,754.83x = 404,687,012,492.94
  5. Step 5: Solve for x
    x = 404,687,012,492.94/991,754.83
  6. Step 6: Final answer
    x = 408,051.47

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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.