Home / 426,314.76-639,457.50-110,774.40

Finding the Fourth Proportional to 426,314.76, 639,457.50 and 110,774.40

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Solution

The fourth proportional to 426,314.76, 639,457.50 and 110,774.40 is: 166,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,314.76 : 639,457.50 = 110,774.40 : x
  2. Step 2: Convert to fraction form
    426,314.76/639,457.50 = 110,774.40/x
  3. Step 3: Cross multiply
    426,314.76x = 639,457.50 × 110,774.40
  4. Step 4: Simplify right side
    426,314.76x = 70,835,520,888
  5. Step 5: Solve for x
    x = 70,835,520,888/426,314.76
  6. Step 6: Final answer
    x = 166,157.80

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1.5x scale

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.