Home / 1,045.36-1,568.24-315.01

Finding the Fourth Proportional to 1,045.36, 1,568.24 and 315.01

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Solution

The fourth proportional to 1,045.36, 1,568.24 and 315.01 is: 472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.36 : 1,568.24 = 315.01 : x
  2. Step 2: Convert to fraction form
    1,045.36/1,568.24 = 315.01/x
  3. Step 3: Cross multiply
    1,045.36x = 1,568.24 × 315.01
  4. Step 4: Simplify right side
    1,045.36x = 494,011.28
  5. Step 5: Solve for x
    x = 494,011.28/1,045.36
  6. Step 6: Final answer
    x = 472.58

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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.