Home / 1,225,186.41-1,690,509.51-715,790.37

Finding the Fourth Proportional to 1,225,186.41, 1,690,509.51 and 715,790.37

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Solution

The fourth proportional to 1,225,186.41, 1,690,509.51 and 715,790.37 is: 987,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,186.41 : 1,690,509.51 = 715,790.37 : x
  2. Step 2: Convert to fraction form
    1,225,186.41/1,690,509.51 = 715,790.37/x
  3. Step 3: Cross multiply
    1,225,186.41x = 1,690,509.51 × 715,790.37
  4. Step 4: Simplify right side
    1,225,186.41x = 1,210,050,427,651.42
  5. Step 5: Solve for x
    x = 1,210,050,427,651.42/1,225,186.41
  6. Step 6: Final answer
    x = 987,645.98

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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.