Home / 1,048.29-1,572.70-317.94

Finding the Fourth Proportional to 1,048.29, 1,572.70 and 317.94

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Solution

The fourth proportional to 1,048.29, 1,572.70 and 317.94 is: 476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.29 : 1,572.70 = 317.94 : x
  2. Step 2: Convert to fraction form
    1,048.29/1,572.70 = 317.94/x
  3. Step 3: Cross multiply
    1,048.29x = 1,572.70 × 317.94
  4. Step 4: Simplify right side
    1,048.29x = 500,024.24
  5. Step 5: Solve for x
    x = 500,024.24/1,048.29
  6. Step 6: Final answer
    x = 476.99

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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.