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Finding the Fourth Proportional to 1,312,829.05, 1,811,723.57 and 732,035.06

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Solution

The fourth proportional to 1,312,829.05, 1,811,723.57 and 732,035.06 is: 1,010,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,829.05 : 1,811,723.57 = 732,035.06 : x
  2. Step 2: Convert to fraction form
    1,312,829.05/1,811,723.57 = 732,035.06/x
  3. Step 3: Cross multiply
    1,312,829.05x = 1,811,723.57 × 732,035.06
  4. Step 4: Simplify right side
    1,312,829.05x = 1,326,245,172,268.36
  5. Step 5: Solve for x
    x = 1,326,245,172,268.36/1,312,829.05
  6. Step 6: Final answer
    x = 1,010,219.25

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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.