Home / 786,057.16-1,179,334.98-280,607.02

Finding the Fourth Proportional to 786,057.16, 1,179,334.98 and 280,607.02

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Solution

The fourth proportional to 786,057.16, 1,179,334.98 and 280,607.02 is: 420,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,057.16 : 1,179,334.98 = 280,607.02 : x
  2. Step 2: Convert to fraction form
    786,057.16/1,179,334.98 = 280,607.02/x
  3. Step 3: Cross multiply
    786,057.16x = 1,179,334.98 × 280,607.02
  4. Step 4: Simplify right side
    786,057.16x = 330,929,674,319.56
  5. Step 5: Solve for x
    x = 330,929,674,319.56/786,057.16
  6. Step 6: Final answer
    x = 420,999.50

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Double scale
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Similar ratio
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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.