Home / 612,831.30-919,359.90-275,880.18

Finding the Fourth Proportional to 612,831.30, 919,359.90 and 275,880.18

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Solution

The fourth proportional to 612,831.30, 919,359.90 and 275,880.18 is: 413,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,831.30 : 919,359.90 = 275,880.18 : x
  2. Step 2: Convert to fraction form
    612,831.30/919,359.90 = 275,880.18/x
  3. Step 3: Cross multiply
    612,831.30x = 919,359.90 × 275,880.18
  4. Step 4: Simplify right side
    612,831.30x = 253,633,174,696.78
  5. Step 5: Solve for x
    x = 253,633,174,696.78/612,831.30
  6. Step 6: Final answer
    x = 413,871.12

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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.