Home / 460,816.02-691,223.49-128,392.02

Finding the Fourth Proportional to 460,816.02, 691,223.49 and 128,392.02

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Solution

The fourth proportional to 460,816.02, 691,223.49 and 128,392.02 is: 192,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,816.02 : 691,223.49 = 128,392.02 : x
  2. Step 2: Convert to fraction form
    460,816.02/691,223.49 = 128,392.02/x
  3. Step 3: Cross multiply
    460,816.02x = 691,223.49 × 128,392.02
  4. Step 4: Simplify right side
    460,816.02x = 88,747,580,152.55
  5. Step 5: Solve for x
    x = 88,747,580,152.55/460,816.02
  6. Step 6: Final answer
    x = 192,587.88

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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.