Home / 1,217,261.86-1,679,870.88-673,388.30

Finding the Fourth Proportional to 1,217,261.86, 1,679,870.88 and 673,388.30

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Solution

The fourth proportional to 1,217,261.86, 1,679,870.88 and 673,388.30 is: 929,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,261.86 : 1,679,870.88 = 673,388.30 : x
  2. Step 2: Convert to fraction form
    1,217,261.86/1,679,870.88 = 673,388.30/x
  3. Step 3: Cross multiply
    1,217,261.86x = 1,679,870.88 × 673,388.30
  4. Step 4: Simplify right side
    1,217,261.86x = 1,131,205,400,302.38
  5. Step 5: Solve for x
    x = 1,131,205,400,302.38/1,217,261.86
  6. Step 6: Final answer
    x = 929,303.25

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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.