Home / 465,619.80-697,263.30-306,989.40

Finding the Fourth Proportional to 465,619.80, 697,263.30 and 306,989.40

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Solution

The fourth proportional to 465,619.80, 697,263.30 and 306,989.40 is: 459,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,619.80 : 697,263.30 = 306,989.40 : x
  2. Step 2: Convert to fraction form
    465,619.80/697,263.30 = 306,989.40/x
  3. Step 3: Cross multiply
    465,619.80x = 697,263.30 × 306,989.40
  4. Step 4: Simplify right side
    465,619.80x = 214,052,442,109.02
  5. Step 5: Solve for x
    x = 214,052,442,109.02/465,619.80
  6. Step 6: Final answer
    x = 459,715.08

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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.