Home / 1,045.04-1,567.05-386.70

Finding the Fourth Proportional to 1,045.04, 1,567.05 and 386.70

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Solution

The fourth proportional to 1,045.04, 1,567.05 and 386.70 is: 579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.04 : 1,567.05 = 386.70 : x
  2. Step 2: Convert to fraction form
    1,045.04/1,567.05 = 386.70/x
  3. Step 3: Cross multiply
    1,045.04x = 1,567.05 × 386.70
  4. Step 4: Simplify right side
    1,045.04x = 605,978.24
  5. Step 5: Solve for x
    x = 605,978.24/1,045.04
  6. Step 6: Final answer
    x = 579.86

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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.