Home / 780,038.20-1,170,057.30-479,544.40

Finding the Fourth Proportional to 780,038.20, 1,170,057.30 and 479,544.40

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Solution

The fourth proportional to 780,038.20, 1,170,057.30 and 479,544.40 is: 719,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,038.20 : 1,170,057.30 = 479,544.40 : x
  2. Step 2: Convert to fraction form
    780,038.20/1,170,057.30 = 479,544.40/x
  3. Step 3: Cross multiply
    780,038.20x = 1,170,057.30 × 479,544.40
  4. Step 4: Simplify right side
    780,038.20x = 561,094,425,894.12
  5. Step 5: Solve for x
    x = 561,094,425,894.12/780,038.20
  6. Step 6: Final answer
    x = 719,316.60

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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.