Home / 1,029.03-1,420.15-587.07

Finding the Fourth Proportional to 1,029.03, 1,420.15 and 587.07

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Solution

The fourth proportional to 1,029.03, 1,420.15 and 587.07 is: 810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.03 : 1,420.15 = 587.07 : x
  2. Step 2: Convert to fraction form
    1,029.03/1,420.15 = 587.07/x
  3. Step 3: Cross multiply
    1,029.03x = 1,420.15 × 587.07
  4. Step 4: Simplify right side
    1,029.03x = 833,727.46
  5. Step 5: Solve for x
    x = 833,727.46/1,029.03
  6. Step 6: Final answer
    x = 810.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.