Home / 760.03-1,048.40-445.22

Finding the Fourth Proportional to 760.03, 1,048.40 and 445.22

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Solution

The fourth proportional to 760.03, 1,048.40 and 445.22 is: 614.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.03 : 1,048.40 = 445.22 : x
  2. Step 2: Convert to fraction form
    760.03/1,048.40 = 445.22/x
  3. Step 3: Cross multiply
    760.03x = 1,048.40 × 445.22
  4. Step 4: Simplify right side
    760.03x = 466,761.18
  5. Step 5: Solve for x
    x = 466,761.18/760.03
  6. Step 6: Final answer
    x = 614.14

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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.