Home / 780,032.20-1,170,048.30-479,538.40

Finding the Fourth Proportional to 780,032.20, 1,170,048.30 and 479,538.40

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Solution

The fourth proportional to 780,032.20, 1,170,048.30 and 479,538.40 is: 719,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,032.20 : 1,170,048.30 = 479,538.40 : x
  2. Step 2: Convert to fraction form
    780,032.20/1,170,048.30 = 479,538.40/x
  3. Step 3: Cross multiply
    780,032.20x = 1,170,048.30 × 479,538.40
  4. Step 4: Simplify right side
    780,032.20x = 561,083,089,704.72
  5. Step 5: Solve for x
    x = 561,083,089,704.72/780,032.20
  6. Step 6: Final answer
    x = 719,307.60

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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.