Home / 780,064.20-1,170,096.30-479,570.40

Finding the Fourth Proportional to 780,064.20, 1,170,096.30 and 479,570.40

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Solution

The fourth proportional to 780,064.20, 1,170,096.30 and 479,570.40 is: 719,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,064.20 : 1,170,096.30 = 479,570.40 : x
  2. Step 2: Convert to fraction form
    780,064.20/1,170,096.30 = 479,570.40/x
  3. Step 3: Cross multiply
    780,064.20x = 1,170,096.30 × 479,570.40
  4. Step 4: Simplify right side
    780,064.20x = 561,143,550,629.52
  5. Step 5: Solve for x
    x = 561,143,550,629.52/780,064.20
  6. Step 6: Final answer
    x = 719,355.60

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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.