Home / 460,808.02-691,211.49-128,384.02

Finding the Fourth Proportional to 460,808.02, 691,211.49 and 128,384.02

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Solution

The fourth proportional to 460,808.02, 691,211.49 and 128,384.02 is: 192,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,808.02 : 691,211.49 = 128,384.02 : x
  2. Step 2: Convert to fraction form
    460,808.02/691,211.49 = 128,384.02/x
  3. Step 3: Cross multiply
    460,808.02x = 691,211.49 × 128,384.02
  4. Step 4: Simplify right side
    460,808.02x = 88,740,509,756.39
  5. Step 5: Solve for x
    x = 88,740,509,756.39/460,808.02
  6. Step 6: Final answer
    x = 192,575.88

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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.