Home / 912,573.50-1,369,053.05-343,942.56

Finding the Fourth Proportional to 912,573.50, 1,369,053.05 and 343,942.56

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Solution

The fourth proportional to 912,573.50, 1,369,053.05 and 343,942.56 is: 515,986.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,573.50 : 1,369,053.05 = 343,942.56 : x
  2. Step 2: Convert to fraction form
    912,573.50/1,369,053.05 = 343,942.56/x
  3. Step 3: Cross multiply
    912,573.50x = 1,369,053.05 × 343,942.56
  4. Step 4: Simplify right side
    912,573.50x = 470,875,610,792.81
  5. Step 5: Solve for x
    x = 470,875,610,792.81/912,573.50
  6. Step 6: Final answer
    x = 515,986.50

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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.