Home / 1,220.50-1,831.35-526.98

Finding the Fourth Proportional to 1,220.50, 1,831.35 and 526.98

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Solution

The fourth proportional to 1,220.50, 1,831.35 and 526.98 is: 790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220.50 : 1,831.35 = 526.98 : x
  2. Step 2: Convert to fraction form
    1,220.50/1,831.35 = 526.98/x
  3. Step 3: Cross multiply
    1,220.50x = 1,831.35 × 526.98
  4. Step 4: Simplify right side
    1,220.50x = 965,084.82
  5. Step 5: Solve for x
    x = 965,084.82/1,220.50
  6. Step 6: Final answer
    x = 790.73

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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.