Home / 912,986.91-1,369,212.80-343,957.46

Finding the Fourth Proportional to 912,986.91, 1,369,212.80 and 343,957.46

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Solution

The fourth proportional to 912,986.91, 1,369,212.80 and 343,957.46 is: 515,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,986.91 : 1,369,212.80 = 343,957.46 : x
  2. Step 2: Convert to fraction form
    912,986.91/1,369,212.80 = 343,957.46/x
  3. Step 3: Cross multiply
    912,986.91x = 1,369,212.80 × 343,957.46
  4. Step 4: Simplify right side
    912,986.91x = 470,950,948,321.64
  5. Step 5: Solve for x
    x = 470,950,948,321.64/912,986.91
  6. Step 6: Final answer
    x = 515,835.38

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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.