Home / 712,076.80-1,068,806.40-357,491.20

Finding the Fourth Proportional to 712,076.80, 1,068,806.40 and 357,491.20

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Solution

The fourth proportional to 712,076.80, 1,068,806.40 and 357,491.20 is: 536,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,076.80 : 1,068,806.40 = 357,491.20 : x
  2. Step 2: Convert to fraction form
    712,076.80/1,068,806.40 = 357,491.20/x
  3. Step 3: Cross multiply
    712,076.80x = 1,068,806.40 × 357,491.20
  4. Step 4: Simplify right side
    712,076.80x = 382,088,882,503.68
  5. Step 5: Solve for x
    x = 382,088,882,503.68/712,076.80
  6. Step 6: Final answer
    x = 536,583.81

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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.