Home / 1,284,937.94-1,926,050.59-431,200.11

Finding the Fourth Proportional to 1,284,937.94, 1,926,050.59 and 431,200.11

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Solution

The fourth proportional to 1,284,937.94, 1,926,050.59 and 431,200.11 is: 646,345.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,937.94 : 1,926,050.59 = 431,200.11 : x
  2. Step 2: Convert to fraction form
    1,284,937.94/1,926,050.59 = 431,200.11/x
  3. Step 3: Cross multiply
    1,284,937.94x = 1,926,050.59 × 431,200.11
  4. Step 4: Simplify right side
    1,284,937.94x = 830,513,231,609.75
  5. Step 5: Solve for x
    x = 830,513,231,609.75/1,284,937.94
  6. Step 6: Final answer
    x = 646,345.02

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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.