Home / 885,687.80-1,328,726.10-436,623.80

Finding the Fourth Proportional to 885,687.80, 1,328,726.10 and 436,623.80

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Solution

The fourth proportional to 885,687.80, 1,328,726.10 and 436,623.80 is: 655,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,687.80 : 1,328,726.10 = 436,623.80 : x
  2. Step 2: Convert to fraction form
    885,687.80/1,328,726.10 = 436,623.80/x
  3. Step 3: Cross multiply
    885,687.80x = 1,328,726.10 × 436,623.80
  4. Step 4: Simplify right side
    885,687.80x = 580,153,438,941.18
  5. Step 5: Solve for x
    x = 580,153,438,941.18/885,687.80
  6. Step 6: Final answer
    x = 655,031.53

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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.