Home / 662,131.28-993,189.87-438,492.30

Finding the Fourth Proportional to 662,131.28, 993,189.87 and 438,492.30

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Solution

The fourth proportional to 662,131.28, 993,189.87 and 438,492.30 is: 657,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,131.28 : 993,189.87 = 438,492.30 : x
  2. Step 2: Convert to fraction form
    662,131.28/993,189.87 = 438,492.30/x
  3. Step 3: Cross multiply
    662,131.28x = 993,189.87 × 438,492.30
  4. Step 4: Simplify right side
    662,131.28x = 435,506,110,433.00
  5. Step 5: Solve for x
    x = 435,506,110,433.00/662,131.28
  6. Step 6: Final answer
    x = 657,733.79

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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.