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Finding the Fourth Proportional to 973.02, 1,343.03 and 619

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Solution

The fourth proportional to 973.02, 1,343.03 and 619 is: 854.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.02 : 1,343.03 = 619 : x
  2. Step 2: Convert to fraction form
    973.02/1,343.03 = 619/x
  3. Step 3: Cross multiply
    973.02x = 1,343.03 × 619
  4. Step 4: Simplify right side
    973.02x = 831,335.57
  5. Step 5: Solve for x
    x = 831,335.57/973.02
  6. Step 6: Final answer
    x = 854.39

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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.