Home / 780,035.70-1,170,053.55-479,541.90

Finding the Fourth Proportional to 780,035.70, 1,170,053.55 and 479,541.90

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Solution

The fourth proportional to 780,035.70, 1,170,053.55 and 479,541.90 is: 719,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,035.70 : 1,170,053.55 = 479,541.90 : x
  2. Step 2: Convert to fraction form
    780,035.70/1,170,053.55 = 479,541.90/x
  3. Step 3: Cross multiply
    780,035.70x = 1,170,053.55 × 479,541.90
  4. Step 4: Simplify right side
    780,035.70x = 561,089,702,468.75
  5. Step 5: Solve for x
    x = 561,089,702,468.75/780,035.70
  6. Step 6: Final answer
    x = 719,312.85

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Similar ratio
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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.