Home / 1,280,964.18-1,767,677.48-764,802.11

Finding the Fourth Proportional to 1,280,964.18, 1,767,677.48 and 764,802.11

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Solution

The fourth proportional to 1,280,964.18, 1,767,677.48 and 764,802.11 is: 1,055,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,964.18 : 1,767,677.48 = 764,802.11 : x
  2. Step 2: Convert to fraction form
    1,280,964.18/1,767,677.48 = 764,802.11/x
  3. Step 3: Cross multiply
    1,280,964.18x = 1,767,677.48 × 764,802.11
  4. Step 4: Simplify right side
    1,280,964.18x = 1,351,923,453,841.09
  5. Step 5: Solve for x
    x = 1,351,923,453,841.09/1,280,964.18
  6. Step 6: Final answer
    x = 1,055,395.21

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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.