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Finding the Fourth Proportional to 1,045.50, 1,567.02 and 583.05

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Solution

The fourth proportional to 1,045.50, 1,567.02 and 583.05 is: 873.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.50 : 1,567.02 = 583.05 : x
  2. Step 2: Convert to fraction form
    1,045.50/1,567.02 = 583.05/x
  3. Step 3: Cross multiply
    1,045.50x = 1,567.02 × 583.05
  4. Step 4: Simplify right side
    1,045.50x = 913,651.01
  5. Step 5: Solve for x
    x = 913,651.01/1,045.50
  6. Step 6: Final answer
    x = 873.89

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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.