Home / 515,821.35-772,255.80-456,772.35

Finding the Fourth Proportional to 515,821.35, 772,255.80 and 456,772.35

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Solution

The fourth proportional to 515,821.35, 772,255.80 and 456,772.35 is: 683,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,821.35 : 772,255.80 = 456,772.35 : x
  2. Step 2: Convert to fraction form
    515,821.35/772,255.80 = 456,772.35/x
  3. Step 3: Cross multiply
    515,821.35x = 772,255.80 × 456,772.35
  4. Step 4: Simplify right side
    515,821.35x = 352,745,096,567.13
  5. Step 5: Solve for x
    x = 352,745,096,567.13/515,821.35
  6. Step 6: Final answer
    x = 683,851.29

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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.