Home / 712,367.84-1,066,855.62-412,215.86

Finding the Fourth Proportional to 712,367.84, 1,066,855.62 and 412,215.86

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Solution

The fourth proportional to 712,367.84, 1,066,855.62 and 412,215.86 is: 617,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,367.84 : 1,066,855.62 = 412,215.86 : x
  2. Step 2: Convert to fraction form
    712,367.84/1,066,855.62 = 412,215.86/x
  3. Step 3: Cross multiply
    712,367.84x = 1,066,855.62 × 412,215.86
  4. Step 4: Simplify right side
    712,367.84x = 439,774,806,894.13
  5. Step 5: Solve for x
    x = 439,774,806,894.13/712,367.84
  6. Step 6: Final answer
    x = 617,342.31

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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.