Home / 1,224,955.89-1,690,190.55-715,559.85

Finding the Fourth Proportional to 1,224,955.89, 1,690,190.55 and 715,559.85

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Solution

The fourth proportional to 1,224,955.89, 1,690,190.55 and 715,559.85 is: 987,327.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,955.89 : 1,690,190.55 = 715,559.85 : x
  2. Step 2: Convert to fraction form
    1,224,955.89/1,690,190.55 = 715,559.85/x
  3. Step 3: Cross multiply
    1,224,955.89x = 1,690,190.55 × 715,559.85
  4. Step 4: Simplify right side
    1,224,955.89x = 1,209,432,496,429.42
  5. Step 5: Solve for x
    x = 1,209,432,496,429.42/1,224,955.89
  6. Step 6: Final answer
    x = 987,327.39

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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.