Home / 1,066,708.02-1,471,936.52-631,138.72

Finding the Fourth Proportional to 1,066,708.02, 1,471,936.52 and 631,138.72

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Solution

The fourth proportional to 1,066,708.02, 1,471,936.52 and 631,138.72 is: 870,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,708.02 : 1,471,936.52 = 631,138.72 : x
  2. Step 2: Convert to fraction form
    1,066,708.02/1,471,936.52 = 631,138.72/x
  3. Step 3: Cross multiply
    1,066,708.02x = 1,471,936.52 × 631,138.72
  4. Step 4: Simplify right side
    1,066,708.02x = 928,996,131,154.05
  5. Step 5: Solve for x
    x = 928,996,131,154.05/1,066,708.02
  6. Step 6: Final answer
    x = 870,900.11

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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.