Home / 1,215,623.80-1,820,811.30-1,058,159.80

Finding the Fourth Proportional to 1,215,623.80, 1,820,811.30 and 1,058,159.80

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Solution

The fourth proportional to 1,215,623.80, 1,820,811.30 and 1,058,159.80 is: 1,584,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,623.80 : 1,820,811.30 = 1,058,159.80 : x
  2. Step 2: Convert to fraction form
    1,215,623.80/1,820,811.30 = 1,058,159.80/x
  3. Step 3: Cross multiply
    1,215,623.80x = 1,820,811.30 × 1,058,159.80
  4. Step 4: Simplify right side
    1,215,623.80x = 1,926,709,321,045.74
  5. Step 5: Solve for x
    x = 1,926,709,321,045.74/1,215,623.80
  6. Step 6: Final answer
    x = 1,584,955.25

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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.