Home / 1,225,269.81-1,690,624.17-715,873.77

Finding the Fourth Proportional to 1,225,269.81, 1,690,624.17 and 715,873.77

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Solution

The fourth proportional to 1,225,269.81, 1,690,624.17 and 715,873.77 is: 987,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,269.81 : 1,690,624.17 = 715,873.77 : x
  2. Step 2: Convert to fraction form
    1,225,269.81/1,690,624.17 = 715,873.77/x
  3. Step 3: Cross multiply
    1,225,269.81x = 1,690,624.17 × 715,873.77
  4. Step 4: Simplify right side
    1,225,269.81x = 1,210,273,498,231.02
  5. Step 5: Solve for x
    x = 1,210,273,498,231.02/1,225,269.81
  6. Step 6: Final answer
    x = 987,760.81

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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.