Home / 493,427.23-680,891.57-278,588.50

Finding the Fourth Proportional to 493,427.23, 680,891.57 and 278,588.50

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Solution

The fourth proportional to 493,427.23, 680,891.57 and 278,588.50 is: 384,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,427.23 : 680,891.57 = 278,588.50 : x
  2. Step 2: Convert to fraction form
    493,427.23/680,891.57 = 278,588.50/x
  3. Step 3: Cross multiply
    493,427.23x = 680,891.57 × 278,588.50
  4. Step 4: Simplify right side
    493,427.23x = 189,688,559,098.48
  5. Step 5: Solve for x
    x = 189,688,559,098.48/493,427.23
  6. Step 6: Final answer
    x = 384,430.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.