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Finding the Fourth Proportional to 973.02, 1,342.80 and 579.99

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Solution

The fourth proportional to 973.02, 1,342.80 and 579.99 is: 800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.02 : 1,342.80 = 579.99 : x
  2. Step 2: Convert to fraction form
    973.02/1,342.80 = 579.99/x
  3. Step 3: Cross multiply
    973.02x = 1,342.80 × 579.99
  4. Step 4: Simplify right side
    973.02x = 778,810.57
  5. Step 5: Solve for x
    x = 778,810.57/973.02
  6. Step 6: Final answer
    x = 800.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.