Home / 453,564.20-680,346.30-391,356.20

Finding the Fourth Proportional to 453,564.20, 680,346.30 and 391,356.20

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Solution

The fourth proportional to 453,564.20, 680,346.30 and 391,356.20 is: 587,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,564.20 : 680,346.30 = 391,356.20 : x
  2. Step 2: Convert to fraction form
    453,564.20/680,346.30 = 391,356.20/x
  3. Step 3: Cross multiply
    453,564.20x = 680,346.30 × 391,356.20
  4. Step 4: Simplify right side
    453,564.20x = 266,257,742,652.06
  5. Step 5: Solve for x
    x = 266,257,742,652.06/453,564.20
  6. Step 6: Final answer
    x = 587,034.30

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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.