Home / 690,338.42-1,035,567.47-210,674.22

Finding the Fourth Proportional to 690,338.42, 1,035,567.47 and 210,674.22

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Solution

The fourth proportional to 690,338.42, 1,035,567.47 and 210,674.22 is: 316,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,338.42 : 1,035,567.47 = 210,674.22 : x
  2. Step 2: Convert to fraction form
    690,338.42/1,035,567.47 = 210,674.22/x
  3. Step 3: Cross multiply
    690,338.42x = 1,035,567.47 × 210,674.22
  4. Step 4: Simplify right side
    690,338.42x = 218,167,368,999.62
  5. Step 5: Solve for x
    x = 218,167,368,999.62/690,338.42
  6. Step 6: Final answer
    x = 316,029.59

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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.