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Finding the Fourth Proportional to 1,043, 1,564.72 and 555.92

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Solution

The fourth proportional to 1,043, 1,564.72 and 555.92 is: 834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043 : 1,564.72 = 555.92 : x
  2. Step 2: Convert to fraction form
    1,043/1,564.72 = 555.92/x
  3. Step 3: Cross multiply
    1,043x = 1,564.72 × 555.92
  4. Step 4: Simplify right side
    1,043x = 869,859.14
  5. Step 5: Solve for x
    x = 869,859.14/1,043
  6. Step 6: Final answer
    x = 834.00

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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.