Home / 1,066,754.10-1,470,862.80-862,172.40

Finding the Fourth Proportional to 1,066,754.10, 1,470,862.80 and 862,172.40

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Solution

The fourth proportional to 1,066,754.10, 1,470,862.80 and 862,172.40 is: 1,188,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,754.10 : 1,470,862.80 = 862,172.40 : x
  2. Step 2: Convert to fraction form
    1,066,754.10/1,470,862.80 = 862,172.40/x
  3. Step 3: Cross multiply
    1,066,754.10x = 1,470,862.80 × 862,172.40
  4. Step 4: Simplify right side
    1,066,754.10x = 1,268,137,310,346.72
  5. Step 5: Solve for x
    x = 1,268,137,310,346.72/1,066,754.10
  6. Step 6: Final answer
    x = 1,188,781.29

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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.