Home / 515,099.40-772,811.10-248,868.60

Finding the Fourth Proportional to 515,099.40, 772,811.10 and 248,868.60

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Solution

The fourth proportional to 515,099.40, 772,811.10 and 248,868.60 is: 373,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,099.40 : 772,811.10 = 248,868.60 : x
  2. Step 2: Convert to fraction form
    515,099.40/772,811.10 = 248,868.60/x
  3. Step 3: Cross multiply
    515,099.40x = 772,811.10 × 248,868.60
  4. Step 4: Simplify right side
    515,099.40x = 192,328,416,521.46
  5. Step 5: Solve for x
    x = 192,328,416,521.46/515,099.40
  6. Step 6: Final answer
    x = 373,381.17

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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.