Home / 1,272,468.29-1,908,652.57-431,020.01

Finding the Fourth Proportional to 1,272,468.29, 1,908,652.57 and 431,020.01

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Solution

The fourth proportional to 1,272,468.29, 1,908,652.57 and 431,020.01 is: 646,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,468.29 : 1,908,652.57 = 431,020.01 : x
  2. Step 2: Convert to fraction form
    1,272,468.29/1,908,652.57 = 431,020.01/x
  3. Step 3: Cross multiply
    1,272,468.29x = 1,908,652.57 × 431,020.01
  4. Step 4: Simplify right side
    1,272,468.29x = 822,667,449,807.93
  5. Step 5: Solve for x
    x = 822,667,449,807.93/1,272,468.29
  6. Step 6: Final answer
    x = 646,513.12

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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.