Home / 776,695.65-1,071,287.88-518,442.41

Finding the Fourth Proportional to 776,695.65, 1,071,287.88 and 518,442.41

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Solution

The fourth proportional to 776,695.65, 1,071,287.88 and 518,442.41 is: 715,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,695.65 : 1,071,287.88 = 518,442.41 : x
  2. Step 2: Convert to fraction form
    776,695.65/1,071,287.88 = 518,442.41/x
  3. Step 3: Cross multiply
    776,695.65x = 1,071,287.88 × 518,442.41
  4. Step 4: Simplify right side
    776,695.65x = 555,401,064,954.55
  5. Step 5: Solve for x
    x = 555,401,064,954.55/776,695.65
  6. Step 6: Final answer
    x = 715,081.98

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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.